Meniscal lesions are a common pathology among athletes, and have an impact on the daily or sporting practice of patients. The consequences of surgical treatment are sometimes heavy.

Platelet-rich-plasma (PRP) has been shown to be effective in healing tendon and ligament lesions.

PRP has been injected under ultrasound in tendons or intra-articularly for several years.

This technique of meniscal percutaneous injection of PRP is now carried out for more than 2 years in our hospital, with satisfactory preliminary results, without any complication.

All patients in our study received an intra-meniscal injection of PRP, under echographic control. They were evaluated clinically and by Magnetic Resonance Imaging (MRI) before and at 6 months of the injection.

The aim of the study is to evaluate the efficacy of intra-meniscal injection of PRP on the symptomatology of the patients (pain, sport activities and daily life) at 6 months post-treatment.

Inclusion Criteria:

• isolated symptomatic meniscal lesion
• lesion confirmed by MRI
• grade II or III lesion touching the peripheral involvement of the middle segment,
• lesion treated by percutaneous intra meniscal PRP's injection
• IKDC score measured before injection and 6 months post-injection

Exclusion Criteria:

• other painful etiology of the knee
• emergency surgical management (luxation, bucket handle) or not (indication validated by the surgeon, meniscectomy or meniscal suture)
• impossibility to perform the procedure (non visible lesion, morphology of the patient, cutaneous infection, coagulation treatment in progress)

Patient with symptomatic non-surgical meniscal injury treated with percutaneous intravenous injection of platelet-rich plasma (PRP)