CPT® Code 26518

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 to access the underlying structures. During the operation, the flexor pollicis longus tendon is exposed, and a portion of its tendon sheath is excised to facilitate the correction. The procedure also involves the exposure and incision of the volar plate, which is a critical structure in the MCP joint that helps stabilize the joint and allows for proper finger movement. By carefully manipulating the volar plate and positioning the finger in a slightly flexed position, the surgeon aims to restore optimal function. The volar plate is then secured against the metacarpal neck using a Kirschner wire, which helps maintain the desired position of the finger post-surgery. This procedure is specifically coded as CPT® Code 26518 when performed on three or four fingers, distinguishing it from similar procedures coded under 26516 for one finger and 26517 for two fingers.