CPT® Code 25445

Arthroplasty with prosthetic replacement of the trapezium bone is a surgical procedure aimed at addressing severe damage or degeneration of the trapezium, one of the carpal bones located at the base of the thumb. This procedure involves the removal of the damaged trapezium and its replacement with a prosthetic component, which is designed to restore function and alleviate pain in the wrist and thumb area. The surgery is typically indicated for patients suffering from conditions such as osteoarthritis, trauma, or other degenerative diseases that compromise the integrity of the trapezium. The operation is performed through a midline incision on the posterior aspect of the wrist, allowing for direct access to the radiocarpal joint. During the procedure, careful attention is given to protect the surrounding nerves and tendons, ensuring minimal disruption to the wrist's anatomy. The use of a trial prosthesis allows the surgeon to assess the fit and function before finalizing the placement of the permanent prosthetic components. This meticulous approach aims to achieve optimal alignment and stability, ultimately enhancing the patient's range of motion and quality of life post-surgery.