CPT® Code 24346

The procedure described by CPT® Code 24346 involves the reconstruction of the medial collateral ligament (MCL) of the elbow using a tendon graft, which includes the harvesting of the graft itself. The MCL, also known as the ulnar collateral ligament, is a critical structure that stabilizes the elbow joint and is composed of three interconnected bands of tissue. These bands are essential for maintaining the integrity of the elbow during various movements. The anterior band connects the anterior medial epicondyle of the humerus to the coronoid process of the ulna, while the posterior band attaches to the posterior aspect of the medial humeral epicondyle and the medial edge of the ulnar olecranon process. The intermediate band serves as a bridge between the anterior and posterior bands. Injuries to the MCL can occur due to acute trauma, such as a fall or direct impact, or from chronic stress, often seen in athletes who perform repetitive overhead motions. The reconstruction procedure aims to restore the function and stability of the elbow joint by replacing the damaged ligament with a tendon graft, which can be sourced from various tendons in the body, such as the palmaris longus, plantaris, Achilles, or hamstring tendons. This surgical intervention is crucial for patients experiencing significant instability or pain due to MCL injuries, allowing them to return to their normal activities or sports with improved joint function.