Plasma rich in growth factors to treat adductor longus tear.

Dear Editor, Acute tears of the adductor tendons are a rarely reported injury, and the best treatment for this injury is unknown. Options include conservative treatment with rest, analgesia and physiotherapy, or surgical repair.1 However, nonsurgical therapy such as physiotherapy, anti-infl ammatory medications and acupressure, may represent signifi cant downtime in athletes with high demands. The increasing use of platelet-rich plasma in orthopaedics thus presents both signifi cant opportunities and questions about the most appropriate use of this therapy in acute muscle tears. Clinical uses of growth factors have been reported in the treatment of chronic elbow tendinosis, closure following total knee arthroplasty, augmentation of dental bone grafts, healing of anterior cruciate ligaments grafts and ruptured Achilles tendons. Sanchez et al2 reported a case of plateletderived growth factor (PRGF) used to treat articular cartilage avulsion. However, little has been published on the use of growth factors in acute muscle tears. To our knowledge, there remains a paucity in the literature of the clinical use of PRGF in the treatment of musculoskeletal conditions in our Asian population and thus a lack of concensus on the indications of PRGF injections. We report a case study of PRGF injection of a patient with an acute adductor tear in our centre.