Total shoulder vs reverse shoulder replacement

As reverse shoulder replacements become more and more common, patients routinely come in asking about the difference between it and a standard total shoulder replacement. Here goes my explanation:

Anatomic Total Shoulder Arthroplasty:

An anatomic total shoulder arthroplasty, also known as a traditional shoulder replacement, involves replacing the ball-and-socket joint of the shoulder with a metal ball and a plastic socket. This procedure is typically performed when the patient has arthritis of the shoulder joint and has intact rotator cuff muscles.

During the procedure, the surgeon removes the damaged parts of the shoulder joint and replaces them with the artificial joint. The new joint is designed to replicate the natural movement of the shoulder, allowing the patient to regain a significant amount of mobility and function.

Reverse Total Shoulder Arthroplasty:

A reverse total shoulder arthroplasty, on the other hand, is a more recent innovation that was designed for patients with a rotator cuff tear arthropathy or a massive rotator cuff tear with pseudoparalysis. In these patients, the rotator cuff muscles are not functioning properly and cannot support the joint.

During a reverse shoulder replacement, the surgeon reverses the position of the ball and socket joint. This means that the ball is placed on the socket side of the joint and the socket is placed on the ball side of the joint. This changes the mechanics of the joint and allows the deltoid muscle to take over as the main muscle that powers the shoulder.

The purpose of the reverse shoulder replacement is to restore the patient's ability to lift the arm and perform activities of daily living. However, the range of motion may not be as good as with a traditional shoulder replacement.

In summary, anatomic total shoulder arthroplasty is best for patients who have arthritis of the shoulder joint and have intact rotator cuff muscles. A reverse total shoulder arthroplasty is best for patients who have a rotator cuff tear arthropathy or a massive rotator cuff tear with pseudoparalysis or significant deformity. Both procedures can help improve the patient's quality of life and restore function to the shoulder joint, but it is important to consult with your surgeon to determine which procedure is right for you.

As always, please feel free to contact my office with any questions.

Andrew