CPT® Code 26517

Capsulodesis is a surgical procedure aimed at correcting deformities in the metacarpophalangeal (MCP) joint of the finger, specifically addressing issues related to flexion or extension. This procedure is particularly relevant for patients who experience functional limitations due to these deformities. The surgery involves making an incision over the affected MCP joint, allowing the surgeon to access the underlying structures. The flexor pollicis longus tendon is exposed, and a portion of its tendon sheath is excised to facilitate the procedure. The surgical approach includes retracting the tendon to expose the volar plate, which is a critical structure in the MCP joint. The volar plate is then incised at its proximal and lateral attachments, effectively dividing the intrinsic muscles while preserving the distal attachment. This careful dissection is essential for repositioning the volar plate in a manner that optimizes joint function. The finger is positioned in a slightly flexed state to enhance its functional capabilities post-surgery. To secure the volar plate against the metacarpal neck, a Kirschner wire is drilled into the bone, ensuring that the finger remains in the desired position during the healing process. This procedure is coded as CPT® 26517 when performed on two fingers, distinguishing it from similar procedures coded under 26516 for one finger and 26518 for three or four fingers.