CPT® Code 24545

Open treatment of humeral supracondylar or transcondylar fracture, includes internal fixation, when performed; without intercondylar extension

An open treatment of a humeral supracondylar or transcondylar fracture involves a surgical procedure aimed at correcting fractures located in the distal part of the humerus, specifically above or through the epicondyles. The distal humerus features two prominent bony projections known as the lateral epicondyle and the medial epicondyle. When a fracture occurs just above these epicondyles, it is classified as a supracondylar fracture, while a fracture that traverses through the epicondyles is termed a transcondylar fracture. These fractures can potentially extend into the intercondylar region, which includes critical areas such as the trochlea and the olecranon fossa. The trochlea serves as a pulley-like structure that articulates with the ulna, while the olecranon fossa is a depression at the back of the distal humerus that accommodates the olecranon of the ulna during elbow movement. The surgical approach for repairing these fractures typically involves an olecranon osteotomy, where an incision is made over the elbow to access the fractured area. During the procedure, the ulnar nerve is carefully released from the cubital tunnel to prevent nerve damage, and the olecranon is isolated to allow for a clear view of the joint surfaces. The surgeon makes a small incision into the joint capsule and uses a probe to identify the coronoid process, followed by making an osteotomy cut just above this structure. The olecranon, along with the attached triceps muscle, is then reflected to provide access to the supracondylar and transcondylar joint surfaces. The repair process involves reconstructing the articular surface and stabilizing the fracture fragments to the humeral shaft, utilizing internal fixation methods such as pins or screws. This procedure is specifically coded as CPT® Code 24545 when the fracture does not extend into the intercondylar region, distinguishing it from CPT® Code 24546, which is used when intercondylar fractures are also addressed.