CPT® Code 27097

Proximal release or recession of the hamstring, as described by CPT® Code 27097, is a surgical procedure aimed at addressing flexion deformity of the knee, particularly in patients suffering from conditions such as cerebral palsy. This procedure is essential for improving the functional mobility of patients who experience limitations due to tightness or contracture of the hamstring muscles, which can lead to an inability to fully extend the knee. The surgery involves making an incision in the gluteal crease, which is strategically located over the ischial tuberosity, allowing access to the underlying structures. During the operation, the gluteus maximus muscle is carefully identified and retracted to expose the origins of the hamstring muscles. A critical aspect of the procedure is the identification and protection of the sciatic nerve, which runs in close proximity to the surgical site. The hamstring origins are then released from their attachment at the ischial tuberosity, enabling them to slide distally, which alleviates the tightness contributing to the knee flexion deformity. After the release, meticulous control of any bleeding is performed, and the incision is closed in layers to promote optimal healing. To ensure that the knee remains in an extended position during the recovery phase, a long leg cast is applied post-operatively.