Case series: effects of platelet-rich plasma (PRP) on the recovery of bilateral muscle injuries after removal of semitendinosus and gracilis grafts in bilateral anterior cruciate ligament (ACL) reconstruction

To assess the healing of acute bilateral muscle injury in cases of bilateral anterior cruciate ligament reconstruction using platelet-rich plasma (PRP) after tendon graft removal. The study included 12 cases of bilateral anterior cruciate ligament reconstruction using semitendinosus and gracilis (STG) grafts. In the right knee, the STG graft was removed, and saline solution was applied; in the left knee, the graft was removed, and PRP was applied. Patients were evaluated using the visual analog scale, pre and postoperative isokinetic tests (5 months), and muscle area analysis. A slight difference in results was observed at 15 and 30 days on the PRP-treated side, but there was no variation in circumference and muscle strength. Due to the small sample size, the study will be continued to increase the number of cases, aiming for the publication of results.