CPT® Code 21243

The procedure described by CPT® Code 21243 refers to arthroplasty of the temporomandibular joint (TMJ) involving the replacement of the joint with a prosthetic device. This surgical intervention is typically indicated for patients suffering from severe TMJ disorders, which may include chronic pain, limited jaw movement, or structural abnormalities of the joint. The surgery aims to alleviate symptoms and restore function by replacing damaged or diseased components of the TMJ with artificial materials. The procedure involves making incisions near the ear and potentially below the jaw to access the joint, allowing the surgeon to remove the affected parts and implant the prosthetic joint. The use of screws to secure the prosthetic to the remaining bone structure ensures stability and proper alignment, which is crucial for the successful integration of the implant and the restoration of normal jaw function. Following the procedure, careful closure of the incisions is performed to promote healing and minimize scarring.