Back Pain: Understanding Its Causes, Symptoms and Warning Signs

veerpal sharma on October 2026

Back Pain: Understanding Its Causes, Symptoms and Warning Signs

Back pain is one of the most common reasons people experience difficulty with everyday movements. It may begin as stiffness after prolonged sitting, discomfort while bending or a dull ache after physical activity. In some patients, the pain becomes persistent, affects sleep or spreads from the lower back into the buttock and legs.

Although back pain is often associated with muscle strain, it can also arise from spinal joints, intervertebral discs, ligaments or irritation of the nerves. The location, duration and pattern of pain provide important clues about its possible origin.

At N K Aggarwal Joints & Spine Centre, Ludhiana, understanding these differences is an important part of evaluating patients with back pain. A careful clinical assessment helps distinguish common mechanical problems from conditions that may require further investigation.

Understanding Different Types of Back Pain

Back pain is not the same in every patient. It can be classified according to its location, causes, duration and associated symptoms.

Lower back pain: The most frequently affected region is the lumbar spine, which supports body weight and allows bending, twisting and lifting. Pain may remain localised or extend towards the buttocks.

Upper and middle back pain: Discomfort in the thoracic region may arise from muscular or joint-related problems. Persistent or unusual pain requires assessment to exclude other causes.

Acute back pain: Symptoms lasting less than six weeks are generally classified as acute. Many uncomplicated episodes improve over time.

Chronic back pain: Pain persisting for more than three months is considered chronic. It may involve several contributing factors, including physical, psychological and lifestyle-related influences.[1]

What Are the Common Causes of Back Pain?

Mechanical Back Pain

Mechanical back pain is commonly associated with muscles, ligaments, joints and movement-related loading of the spine. It may develop after repetitive bending, lifting, prolonged sitting or sudden physical exertion. Patients often describe stiffness after rest, pain during certain movements or discomfort that changes with activity.

Muscle and Ligament Strain

Sudden twisting, lifting heavy objects or repetitive physical work can strain the soft tissues supporting the spine. Symptoms may include localised pain, muscle tightness and restricted movement.

Disc Degeneration and Slip Disc

Intervertebral discs help distribute forces between the vertebrae. With age, these discs undergo structural changes that may sometimes contribute to back pain. A herniated disc, commonly called a slip disc, occurs when disc material extends beyond its normal boundaries. Depending on its position, it may irritate or compress a nearby nerve.

However, an MRI showing disc degeneration does not necessarily establish the cause of pain. A systematic review published in the American Journal of Neuroradiology found that degenerative spinal changes are common even in individuals without symptoms.[2]

Sciatica and Nerve Irritation

Sciatica refers to symptoms associated with irritation of nerve roots supplying the leg. Pain may travel from the lower back into the buttock, thigh, calf or foot. Patients may also experience tingling, numbness or weakness. These symptoms require evaluation to determine whether spinal nerve involvement is present.

Spinal Stenosis

Spinal stenosis involves narrowing of spaces around the spinal nerves. In some patients, it produces leg discomfort, heaviness or numbness during standing or walking, with relief after sitting or bending forward. This pattern is particularly relevant when evaluating older adults with persistent symptoms.

Symptoms That Help Identify the Nature of Back Pain

The characteristics of pain often provide useful clinical information:

Dull aching pain: May accompany muscular or mechanical back problems.
Stiffness after sitting: Can occur with several mechanical and degenerative conditions.
Sharp pain during movement: May be associated with strain or irritation of spinal structures.
Pain radiating into the leg: May suggest nerve-root irritation.
Tingling or numbness: Requires assessment for possible neurological involvement.
Difficulty standing or walking: May occur with persistent pain or certain spinal conditions.

No single symptom confirms a diagnosis. The overall pattern and examination findings are more informative than pain intensity alone.

Who Is More Likely to Develop Back Pain?

Back pain can affect people of all ages. Certain factors are associated with a greater likelihood of symptoms or recurrence. These include previous episodes of back pain, repetitive lifting, prolonged sedentary activity, low physical activity, excess body weight and physically demanding work.

Psychological stress and poor sleep may also influence how pain is experienced and how long it persists. Back pain is often multifactorial rather than the result of one identifiable structural abnormality.[1]

When Should Back Pain Be Taken Seriously?

Most episodes of back pain are not medical emergencies. However, some symptoms require urgent evaluation.

Seek emergency medical care if back pain is accompanied by new difficulty like passing urine, loss of bladder or bowel control, numbness around the groin or saddle area, or rapidly progressive weakness in one or both legs. These symptoms may indicate serious nerve compression.

Back pain associated with significant trauma, fever, unexplained weight loss or a history of cancer also warrants prompt medical assessment.[3]

Persistent pain that interferes with work, walking or sleep should be evaluated even when emergency symptoms are absent.

How Is Back Pain Diagnosed?

Evaluation begins with the patient’s medical history and a physical examination. The clinician assesses the location and duration of pain, movements that aggravate symptoms, spinal mobility and possible neurological changes.

When indicated, examination may include muscle strength, reflexes, sensation and nerve-related tests.

X-rays and MRI scans are not necessary for every patient. Imaging is considered when the clinical findings suggest a specific condition or when the results are likely to influence management.[3] The relationship between symptoms, examination findings and imaging is essential for an accurate clinical assessment.

A Brief Overview of Back Pain Management

Management depends on the underlying cause and the patient’s functional limitations. Depending on the clinical findings, options may include activity guidance, structured rehabilitation, medication or selected specialist interventions.

Most uncomplicated episodes do not require surgery. Persistent neurological symptoms or significant nerve compression may require further assessment. Individual treatment options, including physiotherapy, injections and surgical procedures, are best discussed separately according to their specific indications.

Back Pain Assessment in Ludhiana

At N K Aggarwal Joints & Spine Centre, Ludhiana, the clinical priority is to identify the likely source of back pain and distinguish mechanical discomfort from disc-related or neurological conditions.

Patients experiencing recurring lower back pain, persistent stiffness, radiating leg pain or changes in sensation should consider a specialist assessment. Understanding the nature of the problem helps determine whether additional investigations or treatment are appropriate.

Medical References

[1] World Health Organization. WHO guideline for non-surgical management of chronic primary low back pain in adults in primary and community care settings. 2023.

https://www.who.int/publications/i/item/9789240081789

[2] Brinjikji W, Luetmer PH, Comstock B, et al. Systematic literature review of imaging features of spinal degeneration in asymptomatic populations. American Journal of Neuroradiology. 2015;36(4):811–816.

https://pubmed.ncbi.nlm.nih.gov/25430861

[3] National Institute for Health and Care Excellence. Low back pain and sciatica in over 16s: assessment and management. NICE Guideline NG59.

https://www.nice.org.uk/guidance/ng59/chapter/recommendations

Correcting Knee Malalignment in Osteoarthritis: Why Mechanical Correction Matters

veerpal sharma on October 2026

Correcting Knee Malalignment in Osteoarthritis: Why Mechanical Correction Matters

Knee osteoarthritis is not always a problem of cartilage degeneration alone. In some patients, the alignment of the lower limb plays a major role in determining how force passes through the knee and which compartment experiences the greatest stress.

Consider a patient who experiences pain on the inner side of the knee while walking, climbing stairs or standing for prolonged periods. If examination and weight-bearing X-rays reveal varus alignment with medial-compartment degeneration, the problem may involve both joint damage and abnormal mechanical loading. Treating symptoms without assessing this mechanical factor can leave an important part of the condition unaddressed.

At N K Aggarwal Joints & Spine Centre, Ludhiana, assessment and correction of malalignment are important considerations in knee-preservation treatment. The objective is to identify excessive compartmental loading and determine whether it can be reduced through conservative measures or a corrective procedure.

How Malalignment Changes Knee Loading

The mechanical axis of the lower limb describes the relationship between the centres of the hip, knee and ankle. Its position helps explain how body weight is transmitted through the knee during standing and movement.

In varus alignment, commonly described as bow-legged, loading tends to shift towards the medial compartment. In valgus alignment, commonly described as knock-kneed, loading may increase on the lateral compartment. A prospective study published in JAMA by Sharma and colleagues found that varus alignment was associated with approximately four times the adjusted odds of medial-compartment osteoarthritis progression. Valgus alignment was associated with nearly five times the adjusted odds of lateral-compartment progression over 18 months.[1]

When Conservative Measures Can Help

Not every alignment abnormality requires surgery. The first consideration is whether the loading pattern can be managed with non-operative treatment and whether the deformity is flexible or fixed.

A compartment-specific unloader brace can apply a corrective force intended to reduce loading on the affected side. Strengthening, gait training and appropriate activity modification can improve function and help manage symptoms. Treatment depends on the degree of deformity, symptoms, stability, functional requirements and response to previous management.

High Tibial Osteotomy: Correcting the Mechanical Axis

High tibial osteotomy (HTO) is an established joint-preserving procedure for selected patients with malalignment and compartment-specific osteoarthritis. It is particularly relevant for varus alignment with predominantly medial-compartment disease. A systematic review by He and colleagues examined HTO for knee osteoarthritis and reported improvements in clinical outcomes across the included literature, while noting differences between techniques and limitations in the evidence.[3] The American Academy of Orthopaedic Surgeons states that HTO may be considered to improve pain and function in appropriately selected patients with unicompartmental knee osteoarthritis.[4]

HTO is not suitable for everyone. Cartilage damage, deformity location, ligament stability, activity demands and the condition of the remaining joint all influence whether the procedure is appropriate.

Malalignment Affecting the Outer Side of the Knee

Valgus deformity with lateral-compartment osteoarthritis requires a different assessment from the more commonly discussed varus knee. A systematic review by Coakley and colleagues examined HTO outcomes for valgus knees, including 517 knees across 17 studies. The review found evidence of clinical benefit, but also highlighted limitations in the available evidence and uncertainty regarding quality-of-life outcomes.[5]

The important principle is that alignment correction must match the affected compartment and the anatomical source of the deformity. A procedure designed for one alignment pattern should not automatically be applied to another.

Alignment Correction Within the Ludhiana Protocol

The Ludhiana Protocol considers the mechanical condition of the knee alongside its biological and structural status. The aim is to determine whether abnormal loading is contributing to symptoms and whether that factor can be addressed. Depending on the clinical findings, treatment may include rehabilitation, unloading measures or a selected corrective procedure. PRP or Autologous Growth Factor Concentrate and High Molecular Weight Hyaluronic Acid, along with systemic treatment is also advised for their respective roles in knee-preservation treatment. These approaches serve different purposes. Biological injections do not substitute for correcting a deformity, just as a corrective procedure does not remove the need to assess the remaining joint and its biological condition.

In selected cases, soft-tissue balancing techniques, including ligament pie-crusting, (Needle Plasty) is done to correct mild to moderate varus deformity. These techniques must be distinguished from osteotomy: they are not interchangeable, and their suitability depends on the deformity, knee stability and correction required.

The central principle is to identify the dominant problem in each knee and match the treatment to it. Alignment correction is important when abnormal mechanical loading is clinically meaningful, but it is not a universal requirement for every patient with osteoarthritis.

Who Should Be Evaluated for Malalignment?

A detailed alignment assessment deserves particular attention when a patient has:

Pain concentrated predominantly on the inner or outer side of the knee.
Bow-legged or knock-kneed alignment with persistent symptoms.
Compartment-specific joint-space narrowing on weight-bearing X-rays.
Ongoing functional limitation despite appropriate conservative treatment.
A potential indication for a joint-preserving corrective procedure.

Patients with early or moderate compartmental disease may have different preservation options from those with severe bone-on-bone arthritis, extensive structural damage or major fixed deformity. Decisions should be based on the complete clinical and radiographic picture, not a single X-ray finding.

Clinical Conclusion

Malalignment can influence how force is distributed across the knee and contribute to compartment-specific osteoarthritis progression. Identifying it allows clinicians to address a mechanical factor that symptom-relieving treatment alone may not correct.

At N K Aggarwal Joints & Spine Centre, Ludhiana, alignment assessment is an important consideration in selected knee-preservation cases. Evaluation of the mechanical axis, source of deformity and condition of the affected compartment helps determine whether conservative unloading or a corrective procedure is justified.

The goal is not simply to make the leg appear straighter. It is to improve knee mechanics in a way that suits the patient’s anatomy, disease severity and functional needs.

Medical References

[1] Sharma L, Song J, Felson DT, et al. The role of knee alignment in disease progression and functional decline in knee osteoarthritis. JAMA. 2001;286(2):188–195.

https://pubmed.ncbi.nlm.nih.gov/11448282

[2] Harvey J, Eltayeb M, Moulder EH, et al. Compensatory mechanisms for proximal and distal joint alignment and gait in varus knee osteoarthritis treated with high tibial osteotomy: a systematic review. Journal of Orthopaedics. 2024;54:148–157.

https://pubmed.ncbi.nlm.nih.gov/38586600

[3] He M, Zhong X, Li Z, Shen K, Zeng W. Progress in the treatment of knee osteoarthritis with high tibial osteotomy: a systematic review. Systematic Reviews. 2021;10:56.

https://pmc.ncbi.nlm.nih.gov/articles/PMC7883424

[4] American Academy of Orthopaedic Surgeons. Management of Osteoarthritis of the Knee (Non-Arthroplasty): Evidence-Based Clinical Practice Guideline. 2021.

https://www.aaos.org/oak3cpg

[5] Coakley A, McNicholas M, Biant L, Tawy G. A systematic review of outcomes of high tibial osteotomy for the valgus knee. The Knee. 2023;40:97–110.

https://pubmed.ncbi.nlm.nih.gov/36413904

[6] Systematic review examining the relationship between coronal plane alignment and patient-reported outcomes following high tibial osteotomy.

https://pubmed.ncbi.nlm.nih.gov/33884908

[7] Xie T, Brouwer RW, van den Akker-Scheek I, et al. Clinical relevance of joint line obliquity after high tibial osteotomy for medial knee osteoarthritis remains controversial: a systematic review. Knee Surgery, Sports Traumatology, Arthroscopy. 2023;31:4355–4367.

https://link.springer.com/article/10.1007/s00167-023-07486-w

PRP + Hyaluronic Acid for Knee Osteoarthritis | Ludhiana

veerpal sharma on October 2026

PRP / Autologous Growth Factors Alone or in Combination with Hyaluronic Acid in Knee Osteoarthritis

Knee osteoarthritis is associated with pain, stiffness, inflammation and progressive changes in the joint environment. In daily practice, patients commonly present with pain while walking or climbing stairs, stiffness after sitting, difficulty with prolonged standing and gradual reduction in their normal activities.It has now been established that OA knee is a local manifestation of a low grade systemic inflammation, which is immune mediated and slowly progressive.

At N K Aggarwal Joints & Spine Centre, Ludhiana, we use Platelet-Rich Plasma (PRP) and Autologous Growth Factor Concentrate (GFC) as important biological components of our multimodal knee-preservation approach. This is used in combination with High Molecular Weight Hyaluronic Acid (HA). The rationale for combining them is that they address different aspects of the osteoarthritic joint. PRP/GFC provides the biological component, while HA supports the lubrication and viscoelastic properties of the joint environment.

What Are PRP and Autologous Growth Factors?

PRP is prepared from the patient’s own blood and contains a concentrated fraction of platelets and biologically active substances, including growth factors. These substances are involved in pathways associated with inflammation, tissue repair and cellular responses. Autologous Growth Factor Concentrate is derived from platelets from the patient’s own blood, with the objective of concentrating biologically active growth-factor components for intra-articular use. Because these preparations are autologous, the treatment uses the patient’s own biological material rather than introducing an external drug into the joint.

PRP / GFC as a Stand-Alone Treatment

PRP can be used on its own as an intra-articular biological treatment for knee osteoarthritis. Clinical research has consistently investigated PRP for improvement in pain and function. Meta-analyses of randomized controlled trials have reported beneficial clinical outcomes with PRP in knee osteoarthritis, including improvements in pain and WOMAC functional measures.[1][2] A 2025 critical overview of systematic reviews and meta-analyses also found that PRP generally provides better pain and functional outcomes than HA, particularly during longer follow-up periods.[2]

Growth Factor Concentrate (also considered as activated PRP) is another autologous biological preparation that has been studied separately. A placebo-controlled randomized study of serial GFC injections reported significant clinical improvement in patients with knee osteoarthritis.[3] A more recent randomized controlled trial involving patients with Kellgren-Lawrence Grade II and III osteoarthritis also reported improvements in VAS pain and WOMAC outcomes following intra-articular GFC treatment.[4]

Why Combine PRP / GFC With Hyaluronic Acid?

PRP/GFC and HA have different properties.

HA is a natural component of synovial fluid and contributes to lubrication and viscoelasticity within the knee. PRP/GFC is used for its biological properties and growth-factor content. This provides the clinical rationale for combining the two rather than treating them as competing injections. When both are used, the intention is to provide biological support together with lubrication and improvement of the joint environment.

What Does the Research Show About PRP + HA?

The combination has now been evaluated in multiple randomized controlled trials.

A 2024 systematic review and meta-analysis included 10 randomized controlled trials involving 943 patients. Compared with HA alone, PRP + HA produced greater improvement in pain at 1, 6 and 12 months, as well as better WOMAC total scores at 12 months. The combination also had a lower incidence of adverse events than either HA or PRP alone in that analysis.[5] A 2025 meta-analysis of 11 randomized controlled trials involving 1,023 patients similarly reported better WOMAC, VAS, Lequesne and IKDC outcomes with PRP + HA compared with PRP alone.[6] Another 2025 systematic review of nine studies involving 868 knees found that PRP + HA produced statistically better WOMAC physical-function and total scores compared with PRP alone, with fewer minor adverse events.[7]

Taken together, these studies provide a clinical rationale for combining PRP with HA when both the biological and joint-environmental components of treatment need to be addressed..

How We Use It in the Ludhiana Protocol

At N K Aggarwal Joints & Spine Centre, Ludhiana, we assess the patient’s symptoms, clinical examination, X-rays or MRI, severity of osteoarthritis, alignment, activity level and general health before planning treatment. The multimodal knee preservation treatment “Ludhiana Protocol” includes both local and systemic treatment.

For local treatment, PRP or Autologous Growth Factor Concentrate is combined with High Molecular Weight HA. This forms part of a broader sequence that also includes knee lavage, Oxygen-Ozone therapy, correction of abnormal mechanical loading, rehabilitation and also systemic treatment. The purpose is to address the different factors contributing to symptoms rather than relying on a single injection.

Who May Be Considered?

PRP and GFC-based treatment is mainly considered when knee preservation remains a reasonable clinical objective.

Patients with early or moderate osteoarthritis, and selected patients with early Grade III disease, may be considered for biological treatment. Severe bone-on-bone Grade IV disease with major deformity and extensive structural damage requires a different treatment strategy. Even in many of these patients with advanced disease who are unfit for surgical treatment and want to avoid major surgery, we have been able to achieve good results.

Age alone does not determine suitability. We consider the condition of the knee, symptoms, imaging findings, alignment, functional requirements and general health before deciding the treatment plan which is customized for every patient.

PRP / GFC Within the Ludhiana Protocol

PRP and Autologous Growth Factor Concentrate form an important biological component of Dr. N. K. Aggarwal’s “Ludhiana Protocol for Multimodal Knee Preservation.”

The advantage of this approach is that treatment can be adapted to the individual knee. PRP/GFC is not simply being used as another pain-relieving injection. It is being incorporated as a biological component of a structured knee-preservation strategy, with other modalities added when clinically indicated.

Medical References

[1] Kaye AD, et al. Efficacy of intra-articular platelet-rich plasma injections in treatment of knee osteoarthritis: A systematic review and meta-analysis. Curr Pain Headache Rep. 2025. PubMed: https://pubmed.ncbi.nlm.nih.gov/39760984/

[2] Zhou Q, et al. A critical overview of systematic reviews and meta-analyses of intra-articular injection of platelet rich plasma versus hyaluronic acid for knee osteoarthritis. Clin Rheumatol. 2025;44(2):547-571. PubMed: https://pubmed.ncbi.nlm.nih.gov/39738804/

[3] Saraf A, Hussain A, Bishnoi S, et al. Serial intraarticular injections of growth factor concentrate in knee osteoarthritis: A placebo controlled randomized study. J Orthop. 2023;37:46-52. PubMed: https://pubmed.ncbi.nlm.nih.gov/36974096/

[4] Shah S, Chincholi S, Saraf A, et al. Efficacy of intra-articular Growth Factor Concentrate in Knee Osteoarthritis: A Randomized Controlled Trial. J Orthop Case Rep. 2026;16(7):528-535. PubMed: https://pubmed.ncbi.nlm.nih.gov/42428370/

[5] Gao J, et al. Efficacy and safety of platelet-rich plasma and hyaluronic acid combination therapy for knee osteoarthritis: A systematic review and meta-analysis. Arch Orthop Trauma Surg. 2024;144(9):3947-3967. PubMed: https://pubmed.ncbi.nlm.nih.gov/38972025/

[6] Du D, Liang Y. A meta-analysis and systematic review of the clinical efficacy and safety of platelet-rich plasma combined with hyaluronic acid (PRP + HA) versus PRP monotherapy for knee osteoarthritis (KOA). J Orthop Surg Res. 2025;20(1):57. PubMed: https://pubmed.ncbi.nlm.nih.gov/39819683/

[7] Yudtanahiran N, Piyapanyamongkhon P, Rojpalakorn W, et al. Intra-articular injections of platelet-rich plasma combined with hyaluronic acid versus platelet-rich plasma alone in the treatment of knee osteoarthritis: a systematic review and meta-analysis. Eur J Orthop Surg Traumatol. 2025;35(1):241. PubMed: https://pubmed.ncbi.nlm.nih.gov/40498171/

Role of PRP / Autologous Growth Factors in Osteoarthritis of the Knee

veerpal sharma on October 2026

Role of PRP / Autologous Growth Factors in Osteoarthritis of the Knee

Knee osteoarthritis is associated with pain, stiffness, inflammation and progressive changes in the joint environment. In daily practice, patients commonly present with pain while walking or climbing stairs, stiffness after sitting for some time, difficulty with prolonged standing and gradual reduction in their normal activities. It has now been established that OA knee is a local manifestation of a low grade systemic inflammation, which is immune mediated and slowly progressive.

At N K Aggarwal Joints & Spine Centre, Ludhiana, we use Platelet-Rich Plasma (PRP) and Autologous Growth Factor Concentrate (GFC) as important biological components of our multimodal knee-preservation approach. The purpose is to address the biological environment of the osteoarthritic knee along with lubrication, mechanical loading and other factors contributing to symptoms.

What Are PRP and Autologous Growth Factors?

PRP is prepared from the patient’s own blood and contains a concentrated fraction of platelets and biologically active substances, including growth factors. Autologous Growth Factor Concentrate is similarly prepared from the patient’s own blood and are derived from platelets with the aim of concentrating growth-factor-rich components for intra-articular use.

These preparations are used to support the biological response of the joint. They are different from conventional pain-relieving injections because the treatment is based on using the patient’s own biological material for healing, repair and restoration.

Why Use PRP / Growth Factor Concentrate in Knee Osteoarthritis?

Osteoarthritis involves cartilage damage, inflammation and changes in the tissues surrounding the joint. The biological environment of the knee therefore becomes an important part of treatment.

PRP contains growth factors and other mediators that can influence inflammatory and tissue-repair pathways. Clinical studies have demonstrated improvement in pain and functional scores following intra-articular PRP and growth factor concenterate treatment in knee osteoarthritis.[1][2] The evidence has continued to strengthen. A 2025 systematic review and meta-analysis of 26 randomized controlled trials involving 1,650 knees found that PRP provided significant benefit over Hyaluronic Acid in WOMAC outcomes at both six and twelve months.[2]

What Does the Research Show About Growth Factor Concentrate?

Growth Factor Concentrate has also been directly studied in knee osteoarthritis.

A placebo-controlled randomized study evaluated serial intra-articular GFC injections and reported significant clinical improvement in patients with knee osteoarthritis.[3] More recent randomized evidence has evaluated autologous GFC in patients with Kellgren-Lawrence Grade II and III osteoarthritis, using pain, WOMAC and structural and biochemical parameters as outcome measures.[4] These findings provide a clinical basis for incorporating autologous growth-factor therapy into a knee-preservation programme, particularly where the objective is to support the biological environment of the joint.

PRP / GFC and Hyaluronic Acid: A Complementary Approach

At N K Aggarwal Joints & Spine Centre, we combine PRP/GFC with High Molecular Weight Hyaluronic Acid because the two treatments have complementary roles and they petentiate each other’s effect.

HA contributes to lubrication and the viscoelastic properties of synovial fluid. PRP/GFC provides the biological component. A 2024 systematic review and meta-analysis of 10 randomized controlled trials involving 943 patients found that PRP + HA produced greater improvements in several pain and functional outcomes compared with HA alone.[5] Another meta-analysis of 11 randomized trials involving 1,023 patients also reported better pain and functional outcomes with PRP + HA compared with PRP alone.[6]

How We Use PRP / GFC in the Ludhiana Protocol

At N K Aggarwal Joints & Spine Centre, Ludhiana, we first assess the patient’s symptoms, clinical examination, X-rays or MRI, severity of osteoarthritis, alignment and functional requirements.

PRP or GFC may then be incorporated according to the condition of the individual knee. Depending on the clinical situation, it is combined with High Molecular Weight HA, Oxygen-Ozone therapy, joint lavage, correction of abnormal mechanical loading and rehabilitation. The sequence is individualized. When the knee still has preservation potential, we prefer to use biological treatment as part of a broader treatment pathway rather than depending on a single injection. Though we can not prevent aging, the objective of our treatment is to preserve the joint, and prolong the pain free quality of life, leading to healthy aging.

Who May Be Considered?

PRP and autologous growth-factor treatment are primarily considered when knee preservation remains a reasonable clinical objective. Patients with early or moderate osteoarthritis, and selected cases of early Grade III disease, may be considered for biological treatment.

Severe bone-on-bone Grade IV osteoarthritis with major deformity and extensive structural damage requires a different treatment approach. Even in many of these patients who are unfit for surgical treatment and want to avoid major surgery, we have been able to achieve good results. We consider the condition of the knee, symptoms, imaging findings, alignment, activity level and general health before planning treatment.

PRP / GFC Within the Ludhiana Protocol

PRP and Autologous Growth Factor Concentrate form an important biological component of Dr. N. K. Aggarwal’s “Ludhiana Protocol for Multimodal Knee Preservation” which includes local and systemic treatment.

The local treatment combines biological treatment with lubrication, management of inflammation, mechanical correction and rehabilitation according to the requirements of the individual knee.

For us, PRP/GFC is therefore not treated as an isolated injection. It is used as part of a structured knee-preservation strategy, with the aim of maintaining function and preserving the natural knee for as long as clinically possible.

Medical References

[1] Pelluri R, et al. Effect of platelet-rich plasma versus placebo or corticosteroid for knee osteoarthritis: A systematic review and meta-analysis. J Clin Orthop Trauma. 2025;62:102870.
PubMed: https://pubmed.ncbi.nlm.nih.gov/39882511/

[2] Bagheri K, et al. Platelet rich plasma compared to viscosupplementation in knee osteoarthritis: A systematic review and meta-analysis. J Exp Orthop. 2025;12(3):e70335.
PubMed: https://pubmed.ncbi.nlm.nih.gov/40689098/

[3] Saraf A, et al. Serial intraarticular injections of growth factor concentrate in knee osteoarthritis: A placebo controlled randomized study. J Orthop. 2023;37:46-52.
PubMed: https://pubmed.ncbi.nlm.nih.gov/36974096/

[4] Shah S, et al. Efficacy of intra-articular Growth Factor Concentrate in knee osteoarthritis: A randomized controlled trial. J Orthop Case Rep. 2026;16(7):528-535.
PubMed: https://pubmed.ncbi.nlm.nih.gov/42428370/

[5] Gao J, et al. Efficacy and safety of platelet-rich plasma and hyaluronic acid combination therapy for knee osteoarthritis: A systematic review and meta-analysis. Arch Orthop Trauma Surg. 2024;144:3947-3967.
PubMed: https://pubmed.ncbi.nlm.nih.gov/38972025/

[6] PRP + HA versus PRP monotherapy for knee osteoarthritis: A systematic review and meta-analysis of randomized controlled trials. 2024.
PubMed: https://pubmed.ncbi.nlm.nih.gov/39819683/

Hyaluronic Acid After Knee Lavage: Why We Prefer This Sequence in Selected Patients

veerpal sharma on September 2026

Hyaluronic Acid After Knee Lavage: Why We Prefer This Sequence in Selected Patients

Knee osteoarthritis is associated with pain, stiffness, inflammation, swelling and progressive changes within the joint environment. In daily practice, patients commonly present with pain while walking or climbing stairs, stiffness after sitting, difficulty with prolonged standing and gradual reduction in their normal activities.

Knee preservation is most useful when treatment is planned before the joint reaches advanced structural damage. At N K Aggarwal Joints & Spine Centre, Ludhiana, we use a multimodal approach in selected patients, and one of the treatment sequences we prefer is knee lavage followed by High Molecular Weight Hyaluronic Acid (HA) and other injectables.

The rationale is straightforward. Lavage and HA have different roles. Lavage addresses the intra-articular environment mechanically, while HA is subsequently used to support lubrication and the viscoelastic properties of the joint fluid.

Why Give HA After Knee Lavage?

Synovial fluid contains Hyaluronic Acid, which contributes to the lubrication and viscoelastic behaviour of the knee. In osteoarthritis, the concentration, molecular weight and functional properties of endogenous HA are altered.

During joint lavage, the knee is irrigated and the existing joint fluid is removed along with wear and tear products from meniscus and articular cartilage. The proinflammatory enzymes are also flushed out with lavage. Earlier clinical evidence has also reported improvement in pain and inflammatory signs following arthroscopic lavage, with greater pain relief observed in knees with less advanced radiographic changes.[3] This provides a clinical rationale for introducing HA after lavage, particularly when the objective is to restore a more favourable intra-articular environment following the procedure. In our practice, therefore, HA is not viewed simply as an injection for pain. When lavage is indicated, we consider HA afterward as the next component of the treatment sequence.

What Does the Clinical Evidence Show?

One of the most directly relevant clinical studies was published by Hempfling in Knee Surgery, Sports Traumatology, Arthroscopy. The study included 80 patients undergoing arthroscopic knee lavage for persistent symptoms.

Patients were divided into two groups. One group underwent lavage alone, while the other received lavage followed immediately by an intra-articular injection of sodium Hyaluronate.

Both groups experienced improvement in walking pain and walking ability following treatment. However, the pattern during follow-up was different. At three months, the improvement was less well maintained in the lavage-only group, while the group receiving HA after lavage maintained its improvement. The difference in favour of the HA group was also observed during longer follow-up.[1] This study is particularly relevant to our approach because it evaluates the sequence of lavage followed by HA, rather than simply studying HA as an isolated injection.

Is the Benefit Only About Immediate Pain Relief?

Not necessarily. The clinical rationale for this combination is not that lavage and HA necessarily produce a dramatically different immediate pain response. The potential value lies in what happens after the procedure. Lavage changes the intra-articular environment mechanically, while HA provides a viscoelastic and lubricating component afterward. In the randomized study, the additional HA treatment was associated with better maintenance of clinical improvement during follow-up compared with lavage alone.[1]

Lavage Is Not Required Before Every HA Injection

This distinction is important.

The decision to perform lavage and the decision to administer HA are separate clinical decisions. We do not perform lavage merely because an HA injection is being considered.

Lavage is considered when the clinical condition of the knee provides a reason for the procedure. Long-term follow-up data have also suggested that patient selection is important. Jackson and Dieterichs reported that patients with earlier-stage degenerative changes experienced more sustained symptomatic relief after arthroscopic lavage and debridement, whereas the response in more advanced disease was often temporary and less predictable.[4] In selected patients undergoing lavage as part of a knee-preservation strategy, we prefer to follow it with High Molecular Weight HA to support the joint environment after irrigation. This approach is therefore different from saying that every patient with osteoarthritis requires arthroscopic lavage. Large placebo-controlled research has shown that routine arthroscopic lavage or debridement does not provide clinically meaningful benefit for uncomplicated knee osteoarthritis.[2] Our use of lavage is therefore selective and is based on broader clinical assessment.

How This Fits Into the Ludhiana Protocol

At N K Aggarwal Joints & Spine Centre, Ludhiana, knee preservation is approached as a multimodal treatment strategy rather than a single-injection treatment. When lavage is clinically indicated, we prefer to administer High Molecular Weight Hyaluronic Acid afterward. The purpose is to combine the mechanical component of lavage with the lubricating and viscoelastic properties of HA.

Depending on the condition of the individual knee, other components such as PRP/Growth Factor Concentrate, correction of abnormal mechanical loading, rehabilitation and other supportive treatments may also be incorporated. The sequence is individualized according to the patient’s symptoms, clinical examination, imaging, severity of osteoarthritis, alignment and functional requirements.

Who May Be Considered?

This approach is considered primarily when knee preservation remains a reasonable clinical objective. Patients with early or moderate structural disease may have different treatment requirements from patients with severe bone-on-bone arthritis, major deformity or extensive structural damage. Age alone does not determine treatment. The condition of the joint, the pattern of symptoms and the patient’s functional requirements are considered before deciding whether lavage, HA or a combination of treatments is appropriate.

[1] Hempfling H. Intra-articular hyaluronic acid after knee arthroscopy: a two-year study. Knee Surg Sports Traumatol Arthrosc. 2007;15(5):537-546.

PubMed: https://pubmed.ncbi.nlm.nih.gov/17187274/

[2] Moseley JB, et al. A controlled trial of arthroscopic surgery for osteoarthritis of the knee. N Engl J Med. 2002;347:81-88.

DOI: https://doi.org/10.1056/NEJMoa013259⁠

[3] Livesley PJ, Doherty M, Needoff M, Moulton A. Arthroscopic lavage of osteoarthritic knees. J Bone Joint Surg Br. 1991;73(6):922-926. doi:10.1302/0301-620X.73B6.1720118. PubMed: https://pubmed.ncbi.nlm.nih.gov/1720118

[4] Jackson RW, Dieterichs C. The results of arthroscopic lavage and debridement of osteoarthritic knees based on the severity of degeneration: a 4- to 6-year symptomatic follow-up. Arthroscopy. 2003;19(1):13-20. doi:10.1053/jars.2003.50022. PubMed: https://pubmed.ncbi.nlm.nih.gov/12522398

Shoulder Pain: Causes, Symptoms & Treatment | Ludhiana

veerpal sharma on September 2026

Shoulder Pain: Causes, Symptoms and Common Shoulder Conditions

Shoulder pain is a common musculoskeletal problem, but it can arise from several different structures around the shoulder. Rotator cuff-related problems, frozen shoulder, arthritis, bursitis, tendon disorders and instability can all produce pain, although the pattern of symptoms may be quite different. [1,2]

In our practice at N K Aggarwal Joints & Spine Centre, Ludhiana, we look at the location and character of pain, shoulder movement, strength, activity-related symptoms and any history of injury. This helps determine whether the problem is coming from the rotator cuff, the shoulder joint or another structure around it.

What Does Shoulder Pain Feel Like?

Shoulder pain may develop gradually or begin after an injury. Some patients mainly experience pain, while others have stiffness, weakness or loss of movement.

Common symptoms include:

Pain while lifting or raising the arm
Difficulty with overhead activities
Pain at night or while lying on the affected shoulder
Difficulty reaching behind the back
Stiffness of the shoulder
Weakness while lifting or carrying
Clicking, catching or a feeling of instability
Pain after repetitive work, exercise or sports

The same symptom can occur in different shoulder conditions, so the pattern of movement restriction and weakness is often as important as the location of pain. [1,2]

Common Causes of Shoulder Pain

Rotator Cuff Problems

The rotator cuff consists of four muscles and their tendons that help move and stabilize the shoulder. Rotator cuff-related disease can include tendinopathy, partial tears and full-thickness tears. [2,3]

Patients may notice pain while lifting the arm, weakness during overhead activity or night pain. A rotator cuff tear may occur after an injury, although degenerative tears can also develop gradually with age. The clinical significance of a tear depends on its size, symptoms, functional limitation and the patient’s overall condition. [3]

Frozen Shoulder

Frozen shoulder, or adhesive capsulitis, is characterized by pain accompanied by progressive restriction of shoulder movement. Patients commonly have difficulty raising the arm, reaching behind the back, dressing or combing their hair.

Unlike many rotator cuff problems, frozen shoulder produces substantial restriction of both active and passive movement. Diagnosis is primarily clinical, while imaging may be used when another cause needs to be excluded. [4]

Shoulder Arthritis

Shoulder arthritis can cause pain, stiffness and gradually decreasing movement of the glenohumeral joint. Patients may find everyday activities such as reaching, lifting or dressing increasingly difficult.

The severity of changes seen on an X-ray does not always correspond exactly to the amount of pain experienced. Clinical examination and the patient’s functional limitations therefore remain important when assessing shoulder arthritis. [5]

Bursitis, Tendon Problems and Impingement

Pain can also originate from the tissues surrounding the shoulder, including the subacromial bursa and tendons. These problems may cause pain during lifting or overhead movements and can sometimes produce night discomfort.

Modern literature increasingly groups many of these presentations under subacromial pain rather than treating terms such as impingement, bursitis and rotator cuff tendinopathy as completely separate diseases. [1]

Shoulder Instability and Labral Problems

Instability, labral injuries and some sports-related shoulder injuries can cause pain together with clicking, catching or a sensation that the shoulder may slip out of position. A history of dislocation or a specific sporting injury can be particularly relevant when evaluating these patients. [2]

When Should Shoulder Pain Be Evaluated?

Shoulder pain following significant trauma, persistent night pain, noticeable weakness, progressive loss of movement, recurrent dislocation or symptoms that continue to interfere with normal activities should be assessed clinically.

A detailed history and physical examination are usually the starting point. X-rays, ultrasound or MRI may be appropriate depending on the suspected condition and clinical findings. Current evidence does not support routine early imaging for every patient with uncomplicated shoulder pain. [1]

For someone searching for a shoulder pain specialist in Ludhiana or a shoulder pain doctor in Ludhiana, the first step is to establish what is actually causing the pain. Once the diagnosis is clear, treatment can be selected according to the condition, severity, functional limitation and individual patient factors.

At N K Aggarwal Joints & Spine Centre, Ludhiana, this diagnosis-first approach is also consistent with the broader clinical thinking: understand the underlying problem, assess the mechanical and biological factors involved, and then choose the appropriate treatment pathway rather than treating every patient with shoulder pain in the same way. We use state of the treatment methodologies, including evidence based state of the art Orthobiologic treatments and if necessary modern arthroscopic procedures to treat the shoulder problems. Along with local treatment of shoulder problems, the underlying systemic pathologies are treated as required to give comprehensive and complete relief to patients.

References

[1] Haas R, Ibounig T, Buchbinder R. Management of Shoulder Pain in Primary Care: A Review. JAMA Internal Medicine. 2026.

PubMed: https://pubmed.ncbi.nlm.nih.gov/42606850/⁠� �

PubMed

[2] A Systematic Review of Clinical Practice Guidelines on the Diagnosis and Management of Various Shoulder Disorders. 2023.

PubMed: https://pubmed.ncbi.nlm.nih.gov/37832814/⁠� �

PubMed

[3] American Academy of Orthopaedic Surgeons. Management of Rotator Cuff Injuries: Evidence-Based Clinical Practice Guideline. 2025.

AAOS Rotator Cuff Guideline⁠� �

American Academy of Orthopaedic Surgeons

[4] Clinical Practice Guidelines for Diagnosis and Non-Surgical Treatment of Primary Frozen Shoulder. 2025.

PubMed: https://pubmed.ncbi.nlm.nih.gov/40602400/⁠�

[5] American Academy of Orthopaedic Surgeons. Clinical Practice Guideline for the Management of Glenohumeral Joint Osteoarthritis. 2020.

AAOS Glenohumeral Osteoarthritis Guideline⁠� �

Ozone & Hyaluronic Acid for Knee Osteoarthritis: Benefits, Evidence & Treatment

veerpal sharma on September 2026

Synergistic Effect of Ozone and Hyaluronic Acid in Osteoarthritis of the Knee

Knee osteoarthritis is a progressive condition associated with pain, stiffness, inflammation and changes in the joint environment. In daily practice, patients usually describe a fairly predictable pattern: pain while walking or climbing stairs, stiffness after sitting for some time, difficulty with prolonged standing and gradual reduction in their normal activity.

Knee preservation has therefore become an important part of modern osteoarthritis management, particularly when treatment is started before advanced structural damage develops. We use a combination of Oxygen-Ozone and High Molecular Weight Hyaluronic Acid (HA) as part of our multimodal “Ludhiana – Protocol” for knee preservation. These two have different properties, and their combination has been studied specifically in knee osteoarthritis.

Why Combine Ozone and Hyaluronic Acid?

Hyaluronic Acid is a natural component of synovial fluid. It contributes to the lubrication and viscoelastic properties of the knee and helps maintain the normal environment in which the joint moves. Oxygen-Ozone has a different biological role. Intra-articular ozone has been investigated for its anti-inflammatory, immunomodulatory and pain-modulating effects, with clinical studies reporting improvement in pain and function in knee osteoarthritis.[1][2]

What Has the Research Shown?

The first important evidence for the combination came from a randomized study by Giombini et al. in 2016. Seventy patients with knee osteoarthritis were divided into three groups receiving HA, Oxygen-Ozone or a combination of both. All three groups improved, but the combined-treatment group showed significantly better outcomes for pain, symptoms, activities of daily living and quality of life, particularly at the two-month follow-up.[3]

The 2018 randomized clinical trial by Raeissadat et al. included 174 patients with chronic knee pain or swelling and imaging-confirmed osteoarthritis. Patients received either three weekly HA injections or three weekly Oxygen-Ozone injections. Both groups showed significant improvement in pain, stiffness and function at six months, with no significant difference between the two treatments.[4] This study is useful because it shows that ozone and HA can each provide clinical benefit, but neither treatment should automatically be considered superior to the other in every patient.

More recent evidence has added another dimension. A 2025 retrospective comparative study by Latini et al. evaluated 84 patients receiving Ozone, HA or the combination. The combination produced advantages in several functional and quality-of-life measures, including WOMAC physical function, total WOMAC, Knee Society Scores and both physical and mental quality-of-life scores. The authors also observed a difference in the timing of benefit: ozone provided earlier pain relief, while HA was associated with more sustained improvement.[5]

Another randomized clinical trial published in 2025 by Akhavanakbari et al. compared HA alone with Ozone + HA in 60 patients. Both groups improved, but the combination group had a greater reduction in pain at six months, along with greater improvement in health-related quality of life and sleep quality.[6] A newer 2026 randomized controlled trial by Sconza et al. compared intra-articular Oxygen-Ozone with HA in 112 patients. Both treatments produced significant improvement from the first month. Ozone appeared to act faster, whereas the HA group showed greater pain and functional improvement from three months onwards.[7]

Taken together, these studies provide a more useful clinical picture. Ozone may provide an earlier symptomatic response, HA may have a more sustained effect, and combining the two may provide complementary benefits in selected patients.

How We Use the Combination

At Dr. N. K. Aggarwal Joints & Spine Centre, Ludhiana, the combination of Oxygen-Ozone and High Molecular Weight HA is used as part of our multimodal knee-preservation approach. We assess the patient’s symptoms, clinical examination, X-rays or MRI, severity of arthritis and mechanical alignment before deciding the treatment. The patient’s activity level and general health also matter.

Ozone is used as an adjuvant for its pain-relieving, anti-inflammatory and immunomodulatory properties, while HA provides the lubricating component. Depending on the condition of the knee, the combination may be incorporated with other complementary modalities such as PRP/Growth Factor Concentrate, joint lavage and correction of abnormal mechanical loading. The sequence is individualized. There is no single injection schedule that suits every knee.

Who May Be Considered?

This approach is mainly considered when knee preservation remains a reasonable clinical objective. Patients with mild to moderate osteoarthritis or early structural disease may be managed differently from those with severe bone-on-bone arthritis, major deformity or extensive structural damage. Age by itself does not decide treatment. We look at the condition of the knee, the patient’s symptoms and how much those symptoms are affecting daily life.

Ozone + HA Within the Ludhiana Protocol

The combination of Oxygen-Ozone and High Molecular Weight Hyaluronic Acid forms one component of Dr. N. K. Aggarwal’s “Ludhiana Protocol for Multimodal Knee Preservation.” The idea is to use complementary local and biological treatments according to what the individual knee requires. Ozone and HA can be used together, with PRP/GFC, lavage or mechanical correction added when clinically indicated.

For a patient sitting in front of us with knee pain, the question is not simply which injection is better. We need to determine what is driving the symptoms, how advanced the structural disease is, and whether the knee is still suitable for a preservation-oriented treatment pathway.

Medical References

[1] Lino VTS, et al. Efficacy and safety of ozone therapy for knee osteoarthritis: an umbrella review. Frontiers in Physiology. 2024;15:1348028.
PubMed: https://pubmed.ncbi.nlm.nih.gov/38444768/

[2] Raeissadat SA, et al. Intra-articular ozone or hyaluronic acid injection in knee osteoarthritis: a 6-month randomized clinical trial. Journal of Pain Research. 2018;11:111-117.
PubMed: https://pubmed.ncbi.nlm.nih.gov/29379312/

[3] Giombini A, et al. Hyaluronic acid, oxygen-ozone, and their combination in knee osteoarthritis. Journal of Biological Regulators and Homeostatic Agents. 2016;30(2):621-625.
PubMed: https://pubmed.ncbi.nlm.nih.gov/27358159/
ResearchGate: https://www.researchgate.net/publication/311605201_Comparison_between_intrarticular_injection_of_hyaluronic_acid_oxygen_ozone_and_the_combination_of_both_in_the_treatment_of_knee_osteoarthrosis

[4] Raeissadat SA, et al. Intra-articular ozone or hyaluronic acid injection: Which one is superior in patients with knee osteoarthritis? Journal of Pain Research. 2018;11:111-117.
PubMed: https://pubmed.ncbi.nlm.nih.gov/29379312/

[5] Latini E, Nusca SM, Curci ER, et al. Ozone and hyaluronic acid, alone and in combination: exploring temporal dynamics and synergies in intraarticular therapy for knee osteoarthritis. Pain Physician. 2025;28(4):347-357.
PubMed: https://pubmed.ncbi.nlm.nih.gov/40773642/
Article: https://www.painphysicianjournal.com/current/pdf?article=ODAzNg%3D%3D&journal=171

[6] Akhavanakbari G, Asayeshi M, Noktehsanj R, Aslani MR. Comparing the efficacy of combining ozone therapy with hyaluronic acid versus using hyaluronic acid alone for pain relief in patients with knee osteoarthritis: a randomized clinical trial. Complementary Therapies in Medicine. 2025;93:103238.
ScienceDirect: https://www.sciencedirect.com/science/article/pii/S096522992500113X

[7] Sconza C, Parente A, Marotta N, et al. Intra-articular injections of oxygen-ozone versus hyaluronic acid for the treatment of knee osteoarthritis: a randomized controlled trial. Journal of Back and Musculoskeletal Rehabilitation. 2026;39(1):216-227.
PubMed: https://pubmed.ncbi.nlm.nih.gov/40660843/

Role of Oxygen-Ozone Therapy in Osteoarthritis of the Knee

veerpal sharma on September 2026

Role of Oxygen-Ozone Therapy in Osteoarthritis of the Knee

Osteoarthritis of the knee is a common problem we see in our practice. Patients usually come with pain while walking, difficulty climbing stairs, stiffness after sitting for some time, or morning stiffness that takes a while to settle. As the disease progresses, these symptoms begin interfering with routine activities and exercise.

Osteoarthritis is now understood as a disease involving both mechanical and inflammatory changes. Cartilage damage, synovial inflammation, changes in the subchondral bone and surrounding soft tissues and systemic inflammation can all contribute to pain and loss of function. This is why treating only the pain does not always give a satisfactory long-term result.

With better understanding of these changes, there is growing interest in knee-preservation treatments. Oxygen-Ozone therapy is one such minimally invasive treatment. It has been studied as an intra-articular treatment for knee osteoarthritis and is used in our practice as an adjuvant to other treatment modalities.

What is Oxygen-Ozone Therapy?

Oxygen-Ozone therapy involves injecting a controlled oxygen-ozone mixture into the knee joint. Ozone is a triatomic form of oxygen. When introduced into the joint in controlled therapeutic concentrations, it reacts with biological molecules and produces reactive oxygen species and lipid oxidation products. These reactions can stimulate the body’s own antioxidant and anti-inflammatory responses. The treatment is performed as an intra-articular injection using a sterile technique.

How Does Ozone Help?

Pain in an osteoarthritic knee is influenced by inflammation as well as mechanical changes. Inflammatory mediators such as IL-1, IL-6 and TNF-alpha are involved in the degenerative process, while oxidative stress and proteolytic enzymes can contribute to further cartilage damage. Ozone therapy is believed to act on this inflammatory environment. Studies have described effects on inflammatory cytokines, antioxidant enzymes and cellular metabolism. The treatment may also have an analgesic effect, helping reduce pain and stiffness and making movement and rehabilitation easier.

Clinical studies have reported improvement in pain, stiffness, function and quality of life after intra-articular ozone treatment.[1][2] Recent research has also examined how long these benefits are maintained after treatment.[3]

How Long Does the Effect Last?

The response to ozone is not the same in every patient. Some patients experience relief relatively early, whereas others improve gradually with treatment and rehabilitation. The published evidence suggests that the effect can be more pronounced in the short to medium term. [4][5] For this reason, we do not consider one injection to be the complete treatment of osteoarthritis. The patient’s activity, quadriceps strength, body weight, alignment and the condition of the joint continue to matter.

Ozone and Hyaluronic Acid

Hyaluronic Acid (HA) is naturally present in synovial fluid and contributes to the lubrication and viscoelasticity of the knee. It also provides shock-absorbing properties and has been studied extensively as a conservative treatment for knee osteoarthritis.

Ozone and HA act through different mechanisms. Ozone is used mainly for its anti-inflammatory and pain-modulating effects, whereas HA helps improve lubrication and the mechanical environment of the joint. Studies have directly compared ozone with HA, and research has also evaluated their use in combination. In the 2016 study by Giombini et al., patients receiving the combination of oxygen-ozone and HA showed better outcomes, particularly at the two-month follow-up, than patients receiving either treatment separately.[6] A more recent randomized trial comparing oxygen-ozone with HA found improvement in both groups, with comparable outcomes at six months and only mild, self-limiting adverse events reported.[5]

Oxygen-Ozone Therapy in the Ludhiana Protocol

At Dr. N. K. Aggarwal Joints & Spine Centre, Ludhiana, Oxygen-Ozone therapy is used as part of the Ludhiana Protocol for Multimodal Knee Preservation.

We generally combine different treatment modalities according to the condition of the individual knee. These may include High Molecular Weight Hyaluronic Acid, PRP/Growth Factor Concentrate, joint lavage, rehabilitation and correction of mechanical alignment. Ozone is therefore used as an adjuvant, not as a standalone answer to every case of osteoarthritis.

Who May Benefit?

The decision is made after assessing the patient’s symptoms, clinical examination, X-rays or MRI findings, severity of osteoarthritis, alignment and general health. Ozone has been studied particularly in mild to moderate knee osteoarthritis, including patients with Kellgren-Lawrence Grade I–III disease. The treatment is not suitable for everyone, particularly where there is severe structural damage, major deformity or a clear indication for knee replacement.

Certain medical conditions also need to be considered before treatment. Published clinical guidance lists pregnancy, significant G6PD deficiency, hyperthyroidism, thrombocytopenia, serious cardiovascular instability and active infection among important contraindications or precautions.

Medical References

[1] Lino VTS, Marinho DS, Rodrigues NCP, Andrade CAF. Efficacy and safety of ozone therapy for knee osteoarthritis: an umbrella review of systematic reviews. Front Physiol. 2024;15:1348028.

[2] Raeissadat SA, Rayegani SM, Forogh B, et al. Intra-articular ozone or hyaluronic acid injection: Which one is superior in patients with knee osteoarthritis? J Pain Res. 2018;11:111-117.

[3] Chen T, Tao D, Deng Z, et al. The time-effect relationship of intra-articular ozone injection for knee osteoarthritis: a systematic review and meta-analysis. 2026.

[4] Migliorini F, Giorgino R, Mazzoleni MG, et al. Intra-articular injections of ozone versus hyaluronic acid for knee osteoarthritis: a level I meta-analysis. Eur J Orthop Surg Traumatol. 2024;35:20.

[5] Sconza C, Parente A, Marotta N, et al. Intra-articular injections of oxygen-ozone versus hyaluronic acid for the treatment of knee osteoarthritis: A randomized controlled trial. J Back Musculoskelet Rehabil. 2026;39(1):216-227.

[6] Giombini A, Menotti F, Di Cesare A, et al. Comparison between intra-articular injection of hyaluronic acid, oxygen ozone, and the combination of both in the treatment of knee osteoarthrosis. J Biol Regul Homeost Agents. 2016;30(2):621-625.

Dr. N. K. Agarwal’s “Ludhiana – Protocol” for Knee Preservation: A Multimodal Approach Without Major Surgery

veerpal sharma on August 2026

Dr. N. K. Agarwal’s “Ludhiana – Protocol” for Knee Preservation: A Multimodal Approach Without Major Surgery

Knee osteoarthritis does not always mean that knee replacement is the only option. In appropriately selected patients, a knee-preservation approach may combine several treatments to address pain, joint function, mechanical alignment and also systemic inflammation.

Osteoarthritis of the Knee is no longer considered only wear and tear of cartilage. It has been established to be the result of a systemic inflammatory process which also involves inflammation of all the structures in and around the joint.

This is the philosophy behind Dr. N. K. Agarwal’s “Ludhiana – Protocol for Multimodal Knee Preservation”, an integrated clinical treatment pathway developed and implemented by Dr. N. K. Aggarwal at N K Aggarwal Joints & Spine Centre, Ludhiana. The protocol combines both Local and systemic treatments. In selected treatments in a structured sequence, the exact approach is individualised and tailored to the patient’s condition.

The Ludhiana Protocol

Local Treatment: Local treatment includes arthroscopic joint lavage followed by injections of high molecular weight Hyaluronic Acid, PRP/GFC and Ozone-Oxgen mixture. Realignment procedure is also done when necessary.

1. Knee Cleaning: Arthroscopic Joint Lavage

Arthroscopic joint lavage is also described as limited joint debridement. The procedure is performed using ozonized saline, under IV antibiotic cover and local anaesthesia. The objective is to flush out inflammatory enzymes and debris from wear and tear of meniscus and articular cartilage. This reduces the inflammatory load in the joint, improves the environment and optimises the efficacy of Ozone, Hyaluronic Acid and PRP/GFC injections. Arthroscopic lavage and debridement have been studied in knee osteoarthritis, including non-end-stage disease.[1][2]

2. “Grease” Injection: High Molecular Weight Hyaluronic Acid

The next step involves High Molecular Weight Hyaluronic Acid (HA), commonly explained to patients as a “grease” or lubrication injection. Hyaluronic acid is naturally present in synovial fluid and contributes to joint lubrication and its viscoelastic properties. Depletion of natural Hyaluronic acid is usually the starting point of osteoarthritis of the knee. HA injections have been extensively studied for knee osteoarthritis, with systematic reviews reporting improvements in pain and function in selected patients.[3] Ludhiana Protocol, uses HA to support the lubrication and joint environment.

3. PRP/Growth Factor Concentrate: Supporting the Biological Response

Platelet-Rich Plasma (PRP) or autologous Growth Factor Concentrate is prepared from the patient’s own blood. These preparations contain biologically active substances that may support the biological environment of the joint and help in repair and restoration of damaged cartilage. Systematic reviews and meta-analyses have reported improvements in pain and function following PRP treatment in selected patients with knee osteoarthritis.[4][5]

The protocol combines PRP/Growth Factor Concentrate with HA. A 2024 systematic review and meta-analysis reported better outcomes for several pain and functional measures with PRP plus HA compared with HA/PRP or GFC alone.[6]

4. Oxygen-Ozone Therapy

Ozone therapy has been studied in knee osteoarthritis, with systematic reviews reporting improvements in pain and function, particularly over the short term.[7][8] Recent research has also examined the duration of these effects.[9] It has been further reported in many studies that intra articular injections of Hyaluronic Acid and Ozone Oxygen mixture, give much better result when used in combination, compared to when each one is used alone.[18]

5. Knee Alignment

The protocol also assesses knee alignment and the way forces are distributed through the joint. Varus or valgus malalignment can increase loading on specific compartments of the knee, and research has associated malalignment with progression of knee osteoarthritis.[10][11] When appropriate, mechanical overload may be managed through non-operative measures such as unloader braces, selected orthotics and targeted gait or neuromuscular rehabilitation. [12][13][14]. As part of the Ludhiana Protocol, a minimally invasive approach is used for correction of varus/valgus deformity by pie crusting of ligaments under local anaesthesia.

Systemic Treatment: Systemic treatment targets Systemic inflammation. The medications include low dose, low frequency DMARDS, and other supplementary/supportive drugs which are customized to each patient’s needs.

Why a Multimodal Approach?

The Ludhiana Protocol brings different treatment concepts together, for local and systemic treatment of Osteoarthritis of Knee. Various modalities used have been proven to be complementary and synergistic. They improve and potentiate each other’s efficacy. The purpose is to create a patient-specific knee-preservation pathway, rather than relying on a single treatment.

Is the Ludhiana Protocol Suitable for Everyone?

Treatment depends on the patient’s symptoms, age, X-rays or MRI findings, severity of arthritis, alignment, activity level and overall health.

If started during the early phase of disease it can help avoid the need for Knee Replacement Surgery. Even if started at later stages, it can help postpone the need for knee replacement surgery. The protocol is especially useful for patients who are unfit for major surgery.

This treatment is not suitable for advanced arthritis with severe deformity and structural damage.

The individual treatments within the protocol have been studied in published medical literature. Dr. N. K. Agarwal has integrated these treatment concepts into a synergistic clinical pathway, which we call “Ludhiana Protocol.”

A Patient-Specific Approach to Knee Preservation is planned. The central idea of the Ludhiana Protocol is simple: Treat the knee as a whole, not just the pain.

Medical References

[1] Ike RW, Arnold WJ, Rothschild EW, Shaw HL. Tidal irrigation versus conservative medical management in patients with osteoarthritis of the knee: a prospective randomized study. The Journal of Rheumatology. 1992;19(5):772-779.

PubMed:

https://pubmed.ncbi.nlm.nih.gov/1613709

[2] Frías G, Font P, Muñoz-Gomariz E, et al. Assessing the efficacy of non-arthroscopic joint lavage in patients with osteoarthritis of the knee. Reumatología Clínica. 2009;5(5):189-193.

PubMed:

https://pubmed.ncbi.nlm.nih.gov/21794609

[3] Migliorini F, Maffulli N, Schäfer L, et al. Less Pain with Intra-Articular Hyaluronic Acid Injections for Knee Osteoarthritis Compared to Placebo: A Systematic Review and Meta-Analysis of Randomised Controlled Trials. Pharmaceuticals. 2024;17(11):1557.

PubMed:

https://pubmed.ncbi.nlm.nih.gov/39598466

[4] Oeding JF, Varady NH, Fearington FH, et al. Platelet-Rich Plasma Versus Alternative Injections for Osteoarthritis of the Knee: A Systematic Review and Statistical Fragility Index-Based Meta-analysis of Randomized Controlled Trials. American Journal of Sports Medicine. 2024;52(12):3147-3160.

PubMed:

https://pubmed.ncbi.nlm.nih.gov/38420745

[5] Pelluri R, Sridevi B, Guntupalli C, et al. Effect of platelet-rich plasma versus placebo or corticosteroid for knee osteoarthritis: A systematic review and meta-analysis of randomized controlled trials. Journal of Clinical Orthopaedics and Trauma. 2025;62:102870.

PubMed:

https://pubmed.ncbi.nlm.nih.gov/39882511

[6] Gao J, Ma Y, Tang J, et al. Efficacy and safety of platelet-rich plasma and hyaluronic acid combination therapy for knee osteoarthritis: a systematic review and meta-analysis. Archives of Orthopaedic and Trauma Surgery. 2024;144:3947-3967.

PubMed:

https://pubmed.ncbi.nlm.nih.gov/38972025

[7] Lino VTS, Marinho DS, Rodrigues NCP, Andrade CAF. Efficacy and safety of ozone therapy for knee osteoarthritis: an umbrella review of systematic reviews. Frontiers in Physiology. 2024;15:1348028.

PubMed:

https://pubmed.ncbi.nlm.nih.gov/38444768

[8] Migliorini F, Giorgino R, Mazzoleni MG, et al. Intra-articular injections of ozone versus hyaluronic acid for knee osteoarthritis: a level I meta-analysis. European Journal of Orthopaedic Surgery & Traumatology. 2024;35:20.

PubMed:

https://pubmed.ncbi.nlm.nih.gov/39579218

[9] Chen T, Tao D, Deng Z, et al. The time-effect relationship of intra-articular ozone injection for knee osteoarthritis: a systematic review and meta-analysis. 2026.

PubMed:

https://pubmed.ncbi.nlm.nih.gov/42389359

[10] Sharma L, Song J, Felson DT, et al. The Role of Knee Alignment in Disease Progression and Functional Decline in Knee Osteoarthritis. JAMA. 2001;286(2):188-195.

PubMed:

https://pubmed.ncbi.nlm.nih.gov/11448282

[11] Tanamas SK, Hanna FS, Cicuttini FM, et al. Does Knee Malalignment Increase the Risk of Development and Progression of Knee Osteoarthritis? A Systematic Review. Arthritis & Rheumatism. 2009;61(4):459-467.

PubMed:

https://pubmed.ncbi.nlm.nih.gov/19333985

[12] Petersen W, Ellermann A, Zantop T, et al. Biomechanical effect of unloader braces for medial osteoarthritis of the knee: a systematic review. Archives of Orthopaedic and Trauma Surgery. 2016;136:649-656.

PubMed:

https://pubmed.ncbi.nlm.nih.gov/26739139

[13] Rynne R, Le Tong G, Cheung RTH, Constantinou M. Effectiveness of gait retraining interventions in individuals with hip or knee osteoarthritis: A systematic review and meta-analysis. Gait & Posture. 2022;95:164-175.

PubMed:

https://pubmed.ncbi.nlm.nih.gov/35500366

[14] Castro RQ, Oliveira JVV, Veras PM, et al. Effect of gait retraining strategies on clinical and biomechanical outcomes in subjects with knee osteoarthritis: a systematic review with meta-analysis and GRADE recommendations. Disability and Rehabilitation. 2025;47(24):6271-6279.

PubMed:

https://pubmed.ncbi.nlm.nih.gov/40371628

[15] Sconza C, Parente A, Marotta N, Farì G, Scaturro D, Vecchio M, Mauro GL, Ammendolia A, Baricich A, de Sire A. Intra-articular injections of oxygen-ozone versus hyaluronic acid for the treatment of knee osteoarthritis: A randomized controlled trial. Journal of Back and Musculoskeletal Rehabilitation. 2026;39(1):216-227. doi:10.1177/10538127251358732.

https://pubmed.ncbi.nlm.nih.gov/40660843

[16] [ScienceDirect article corresponding to PII S096522992500113X].

ScienceDirect:

https://www.sciencedirect.com/science/article/pii/S096522992500113X

[17] Raeissadat SA, Rayegani SM, Forogh B, Hassan Abadi P, Moridnia M, Rahimi Dehgolan S. Intra-articular ozone or hyaluronic acid injection: Which one is superior in patients with knee osteoarthritis? A 6-month randomized clinical trial. Journal of Pain Research. 2018;11:111-117. doi:10.2147/JPR.S142755.

https://pubmed.ncbi.nlm.nih.gov/29379312

[18] Giombini A, Menotti F, Di Cesare A, Giovannangeli F, Sorrenti D, Bellomini M, et al. Comparison between intra-articular injection of hyaluronic acid, oxygen ozone, and the combination of both in the treatment of knee osteoarthrosis. Journal of Biological Regulators and Homeostatic Agents. 2016;30(2):621-625.

https://www.researchgate.net/publication/311605201_Comparison_between_intrarticular_injection_of_hyaluronic_acid_oxygen_ozone_and_the_combination_of_both_in_the_treatment_of_knee_osteoarthrosis

AVN of Hip: Can You Avoid Surgery?

veerpal sharma on August 2026

AVN of Hip: Can You Avoid Surgery?

If you’ve been diagnosed with Avascular Necrosis (AVN) of the hip, your biggest concern is probably: “Can it be treated without surgery?”

The answer is yes – but only if AVN is diagnosed in its early stages, before acetabulum also gets invoved. Early treatment may reduce pain, improve hip function, and delay disease progression in selected patients.[1][2]

Who Can Be Treated Without Surgery?

Non-operative treatment may be suitable if:

● AVN is in an early stage.[1]

● MRI shows a small affected area.[2]

● Pain is mild to moderate.

● Daily activities are not grossly restricted.

Your orthopedic surgeon will decide the best treatment after reviewing your MRI and clinical examination.

Non-Surgical Treatment Options

1. Activity Modification

Reducing stress on the hip is the first step. Avoid running, jumping, prolonged standing, and other high-impact activities. Using a walking stick or crutches may reduce pressure on the affected hip.[2]

2. Medications

Pain-relieving medicines can help control symptoms. In selected early-stage patients, bisphosphonates may delay disease progression, although results vary and treatment should be individualized.[3][4]

3. Physiotherapy

A supervised physiotherapy program can improve hip movement, strengthen muscles, and make walking easier. However, physiotherapy cannot regenerate dead bone.[2]

4. Hyperbaric Oxygen and Ozone Therapy

HBOT may improve oxygen delivery to the affected bone and has shown encouraging results in some early-stage patients. However, current evidence is not strong enough for it to be considered standard treatment for everyone.[1][5]

5. Extracorporeal Shock Wave Therapy (ESWT)

Some studies suggest ESWT may reduce pain and improve hip function in early AVN. More high-quality research is still needed before it can be routinely recommended.[1]

6. Orthobiologics & Regenerative medicine

Recent studies have suggested very promising results with Orthobiologic and regenerative treatment methods. It can effectively reduce pain, improve function and postpone or even help avoid the need for major surgical intervention like Total Hip Replacement.

Can AVN Heal Without Surgery?

Unfortunately, dead bone does not completely regenerate on its own. The aim of conservative treatment is to relieve pain, preserve the hip joint, and delay the need for surgery.[1][2] Multimodal treatment combining some of above modalities can have synergistic effects and further improve the results of conservative/minimally invasive forms of treatment.

If the acetabulum has got involved along with head of femur and leads to advanced arthritis of hip, surgery, usually Total Hip Replacement, is the most effective treatment.[2]

When Should You See an Orthopedic Surgeon?

Consult an orthopedic surgeon if you experience:

● Persistent groin or hip pain

● Limping

● Difficulty walking

● Pain that continues despite medication or rest

Early MRI diagnosis gives the best chance of preserving your natural hip.[2]

Key Takeaway

Not every patient with AVN of the hip needs immediate surgery. If diagnosed early, lifestyle changes, medications, physiotherapy, and selected advanced therapies may help slow disease progression and preserve the hip joint. The key is early diagnosis and timely treatment under the guidance of an orthopedic specialist. At Dr N. K. Aggarwal Joints and Spine Centre, majority of the patients of AVN Hip are treated without surgery, with excellent long term results.

References

[1] Cheng EY, Mirzaei A, Goodman SB, et al. Nontraumatic Osteonecrosis of the Femoral Head: An International Evidence-Based Clinical Practice Guideline. Journal of Bone and Joint Surgery (JBJS), 2026. Link: https://www.jbjs.org/reader.php?rsuite_id=56ee33c9-ce77-4446-b225-da096d07556f

[2] American Academy of Orthopaedic Surgeons (AAOS). Osteonecrosis of the Hip (OrthoInfo). Link: https://orthoinfo.aaos.org/en/diseases–conditions/osteonecrosis-of-the-hip/

[3] Agarwala S, Vijayvargiya M. A Paradigm Shift in Osteonecrosis Treatment with Bisphosphonates: A 20-Year Study. JBJS Open Access, 2021. PubMed: https://pubmed.ncbi.nlm.nih.gov/34934885/

[4] Agarwala S, Vijayvargiya M, Sawant T, et al. Bisphosphonates for Post-COVID Osteonecrosis of the Femoral Head. JBJS Open Access, 2022. DOI: https://doi.org/10.2106/JBJS.OA.22.00060

[5] Xiao A, Bonsignore-Opp L, Koffi V, et al. Diagnosis and Management of Osteonecrosis of the Femoral Head in Young Patients. JBJS Reviews, 2025. PubMed: https://pubmed.ncbi.nlm.nih.gov/40498884/