CPT® Code 27306

The procedure described by CPT® Code 27306 refers to a percutaneous tenotomy of a single tendon, specifically targeting either the adductor or hamstring muscles. A tenotomy is a surgical procedure that involves the cutting of a tendon to relieve tension or to correct deformities. In this case, the hamstring tenotomy is particularly relevant for addressing flexion deformities of the knee, which can significantly impact a patient's mobility and quality of life. Additionally, the adductor tenotomy, when performed alongside the hamstring tenotomy, is aimed at improving gait in patients suffering from conditions such as cerebral palsy. The hamstring group consists of three primary muscles: the biceps femoris, semitendinosus, and semimembranosus, which are responsible for extending the knee and flexing the thigh. The gracilis muscle, which is also targeted in this procedure, plays a role in flexing and adducting the thigh. During the procedure, a small stab incision is made in the popliteal crease, which is the area behind the knee, directly over the tendon insertion site on the tibia. The tenotomy is performed without enlarging the incision, ensuring minimal disruption to surrounding tissues. Following the procedure, a long leg or cylinder cast is applied with the knee in an extended position to support the healing process. It is important to note that for cases involving the division of multiple tendons in one leg, CPT® Code 27307 should be utilized instead.