There is a paucity of data regarding using platelet-rich plasma therapy for Baker's cyst-associated medial meniscal tear. To date, conservative treatments for this type of condition include aspiration of fluid effusion with steroid injection and physical therapy. When this treatment fails, arthroscopic debridement, meniscectomy, cyst decompression and open cystectomy are available surgical management options. Recurrence rates, however, are high such that even these procedures fail to provide long-term pain relief. This case study explores the benefits of leukocyte-rich platelet-rich plasma therapy in treating tears in the posterior horn of the medial meniscus with concomitant Baker's cyst. With limited studies available, this case hopes to encourage more studies to be done in the future to provide a conservative option for patients with similar cases.
Keywords: baker's cyst; medial meniscus; meniscal injuries; platelet-rich plasma; posterior horn medial meniscus; ultrasound; ultrasound-guided injection.
Aim: To describe the successful treatment of fluid-filled cyst-associated ligament tear using ultrasound-guided injection of enhanced regenerative blood.Setting: Outpatient clinic.Patient: 60-year-old male with right knee pain.Case description: The patient presented with a 4-month history of right knee pain. Exam revealed restriction and pain during knee bending. Imaging showed swelling in both the front and back of the knee. The patient underwent four weekly enhanced PRP treatments.Results: The patient reported near-complete pain resolution with MRI showing reduction of swelling in the aforementioned areas. Patient was also able to complete a marathon.Conclusion: This enhanced PRP may be considered as a treatment option for patients with Baker's cyst-associated meniscal injuries.