There have been various reports of treatment methods for quadriceps tendon rupture. However, there are very few reports regarding surgical repair for quadriceps muscle rupture. We report a case of old quadriceps muscle rupture treated with surgical repair. A 20-year-old man underwent muscle suturing using perimeter sutures and modified Mason-Allen sutures for a painful old subcutaneous rupture of rectus femoris muscle. After surgery, the pain disappeared and the quadriceps muscle strength improved, and he returned to sports 6 months after the operation. This method provided sufficient muscle strength without need for special instrumentation or procedure, and was effective for his old rectus femoris rupture.
