CPT® Code 25447

Arthroplasty, specifically for the intercarpal or carpometacarpal joints, involves a surgical procedure aimed at alleviating pain and restoring function in these joints, particularly in cases of arthritis. This procedure utilizes interposition techniques, where local tendon tissue is placed between the bones to provide cushioning and support. The most common application of this procedure is in the treatment of arthritis affecting the thumb, particularly at the carpometacarpal joint where the first metacarpal meets the trapezium bone. The surgery is designed to relieve pain and improve mobility by removing damaged bone and cartilage, and replacing it with tendon tissue, which helps to stabilize the joint and reduce friction during movement. The surgical approach requires careful dissection to avoid damaging surrounding structures, such as the radial nerve and artery, and involves specific steps to ensure the successful removal of the trapezium and proper placement of the tendon. Overall, this procedure is a critical intervention for patients suffering from debilitating joint pain due to arthritis, aiming to enhance their quality of life through improved hand function.