# 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

## TL;DR

This case series examines how platelet-rich plasma affects muscle recovery after removing grafts in bilateral ACL surgery.

## Contribution

The study introduces a novel approach using PRP to aid muscle recovery after graft removal in bilateral ACL reconstruction.

## Key findings

- PRP showed slight early improvement in muscle recovery at 15 and 30 days.
- No significant differences in muscle strength or circumference were observed between PRP and saline-treated sides.
- The study will continue to expand the sample size for more conclusive results.

## Abstract

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.