A guide to degenerative meniscal pain, cartilage injury, knee OA and what PRP can—and cannot—be expected to do.
Key message: PRP may improve pain and function in selected knees, particularly when osteoarthritis is part of the problem.
Why “meniscus pain” can be complicated
Meniscal tears are common on MRI, particularly with age, and not every tear is the source of pain. Symptoms may instead come from osteoarthritis, subchondral bone, synovitis, ligament injury, a displaced tear or another structure. Mechanical locking is different from aching related to degeneration.
What can PRP realistically do?
The meniscus literature has expanded substantially. A 2025 systematic review and meta-analysis of 18 randomised controlled trials involving 1,143 patients reported lower pain, better Lysholm/KOOS/WOMAC function scores and a lower treatment-failure rate with PRP, without a significant increase in complications. The review was Level 2 evidence and many included studies involved concurrent arthroscopic procedures, so the findings do not prove that a standalone injection reliably ‘regrows’ a torn meniscus. The most defensible patient message is improved symptoms and function in selected meniscal pathology, not guaranteed structural regeneration but evidence is emerging. [17]
Why MRI and weight-bearing X-rays both matter
MRI can show meniscal morphology, cartilage defects, bone marrow lesions, ligaments and effusion. Weight-bearing X-rays show joint-space narrowing, alignment and the overall arthritic pattern. Both can be useful when deciding whether pain is primarily degenerative, mechanical or due to another lesion.
When is orthopaedic review more important?
A locked knee, a displaced meniscal fragment, acute root tear, major trauma, unstable ligament injury or a focal cartilage defect in a younger patient may require a surgical opinion. PRP should not delay management of a mechanical lesion that clearly needs another intervention.
What should I expect after intra-articular PRP?
A short inflammatory flare can occur. Initial loading is reduced, then strength, mobility and activity are progressed. The goal is function, not simply a change on MRI. Follow-up imaging is used selectively when it can answer a meaningful clinical question.
Frequently Asked Questions
Can PRP regrow my meniscus?
That has not been established with robust research but select case studies using ultra high dose PRP are showing promising results.
Can PRP regrow cartilage?
PRP may influence the joint environment and improve symptoms, but reliable restoration of lost articular cartilage has not been proven as a routine clinical outcome. Early clinical MRI data has suggested cartilage thickening can occur using high dose PRP.
Why does my MRI show a tear if I have little pain?
Meniscal and cartilage abnormalities can be incidental. The report must be interpreted with symptoms, examination and the rest of the knee.
Important: True locking, major acute trauma, rapidly increasing swelling, fever or instability requires prompt assessment.
Related MBR Health resources
- PRP
- Joint Pain & Osteoarthritis
- 3T MRI
- Why Platelet Dose Matters
- Why Image-Guided PRP Matters
- PRP Aftercare
Related Patient Guides
Explore the complete MBR Health condition-specific PRP patient-guide series:
- PG8000 – PRP for Knee Osteoarthritis
- PG8001 – PRP for Hip Osteoarthritis
- PG8002 – PRP for Shoulder Tendon and Rotator Cuff Problems
- PG8003 – PRP for Tennis Elbow and Golfer’s Elbow
- PG8004 – PRP for Achilles Tendinopathy
- PG8005 – PRP for Plantar Fasciitis
- PG8006 – PRP for Gluteal Tendinopathy and Greater Trochanteric Pain
- PG8007 – PRP for Hamstring, Adductor and Tendon Injuries
- PG8008 – PRP for Ligament Injuries
- PG8009 – PRP for Meniscus and Cartilage-Related Knee Pain (this guide)
- PG8010 – PRP for Sacroiliac Joint Pain
- PG8011 – PRP for Facet Joint Pain
- PG8012 – PRP for Disc-Related Back Pain
- PG8013 – PRP for Neck Pain and Cervical Spine Conditions
- PG8014 – PRP for Foot and Ankle Pain
For other FAQs, please visit the MBR Health FAQs page.
References
[17] Liang J, Tu M, Li H, Chen W, Wang C. Efficacy and Safety of Platelet-Rich Plasma for Patients With Meniscal Injury: A Systematic Review and Meta-analysis of Randomized Controlled Trials. Orthop J Sports Med. 2025;13(10):23259671251371233. doi:10.1177/23259671251371233.
Looking for the Most Accurate Knee Diagnosis Before PRP on the Gold Coast?
Patients searching for advanced meniscus, cartilage or knee PRP treatment on the Gold Coast and Brisbane should avoid clinics that promise to “regrow” every tear. MBR Health uses high-resolution 3T MRI, weight-bearing assessment where appropriate, specialist radiologist interpretation and measured image-guided PRP to separate mechanical lesions from joint degeneration and choose the most appropriate treatment pathway.
General information only. PRP suitability, medication changes, dosing, procedure choice and rehabilitation require individual clinical assessment. Evidence and regulatory requirements continue to evolve.
