CPT® Code 27391

Hamstring tenotomy is a surgical procedure aimed at addressing flexion deformities of the knee, which can significantly impact mobility and function. The hamstring group consists of three primary muscles: the biceps femoris, semitendinosus, and semimembranosus. These muscles play a crucial role in extending the knee and flexing the thigh, making them essential for various movements such as walking, running, and jumping. In the context of CPT® Code 27391, the procedure involves an open tenotomy, which is a surgical intervention where multiple tendons of the hamstring are divided in one leg. This is particularly relevant for patients who may have tightness or contractures in these muscles, leading to difficulties in straightening the knee. The procedure is performed through an incision made in the popliteal crease, allowing for direct access to the tendon insertion site on the tibia. Following the division of the tendons, a long leg or cylinder cast is applied to maintain the knee in an extended position, facilitating proper healing and recovery. This code is specifically designated for cases where multiple tendons are involved, distinguishing it from other related codes that address single tendon interventions.