CPT® Code 27665

The procedure described by CPT® Code 27665 pertains to the repair of extensor tendons in the leg, specifically focusing on secondary repairs, which may be necessary when primary repairs do not yield satisfactory functional results. Extensor tendons are crucial for the movement of the toes and ankle, and they include the tibialis anterior, extensor digitorum, peroneus tertius, and extensor hallucis longus. Injuries to these tendons can occur due to various reasons, including lacerations, puncture wounds, or closed injuries such as avulsions, which can lead to partial or complete transection of the tendons. During the procedure, an incision is made at the site of the tendon injury to access the damaged tendon. If the tendon is completely severed, the surgeon locates the ends of the tendon, pulls them together, and repairs them with sutures. In cases of partial transection, the surgeon repairs the damaged fibers directly. If the muscle associated with the tendon is also injured, it is repaired in layers to restore its function. In instances where the primary repair does not achieve the desired functional outcome, a secondary repair is performed. This may involve the use of a graft, where a tendon graft is harvested and attached to the remaining tendon tissue, ensuring proper alignment and tension to facilitate optimal movement in the ankle and toes. The surgical site is then closed in layers, and the leg and ankle are immobilized with a splint or cast to promote healing and recovery.