CPT® Code 26372

Repair or advancement of profundus tendon, with intact superficialis tendon; secondary with free graft (includes obtaining graft), each tendon

The procedure described by CPT® Code 26372 involves the repair or advancement of the flexor digitorum profundus (FDP) tendon when the flexor digitorum superficialis (FDS) tendon remains intact. The FDP tendon is crucial for finger flexion, extending from the upper anterior and medial aspects of the ulna to the wrist, where it divides into four tendons that insert at the palmar base of the distal phalanx of each finger. In cases where the FDP tendon has been injured, a secondary repair is indicated, particularly when the repair is performed more than two weeks after the initial injury. This procedure utilizes a free graft, which is a segment of tendon harvested from another site, typically the palmaris longus tendon from the distal forearm. The graft is essential for reconstructing the damaged tendon, allowing for proper function and healing. The surgical approach involves exposing the site of the original tendon injury, locating the severed ends of the FDP, and attaching the graft to the affected portion of the tendon, which is then tunneled to the base of the distal phalanx for secure anchoring. This method is critical for restoring the integrity and functionality of the tendon, ensuring that the patient can regain finger movement and strength following the repair.