Reverse vs. Standard Shoulder Replacement

Reverse total shoulder replacement is designed for people who have shoulder arthritis along with rotator cuff deficiency. Standard anatomic shoulder replacements can relieve bone‑on‑bone pain, but if the rotator cuff is torn or incompetent, patients may still struggle to lift the arm. In a reverse procedure, the ball is placed where the socket used to be and the socket where the ball used to be.

This change in mechanics allows other muscles to move the arm without relying on a damaged rotator cuff, often restoring elevation while also addressing arthritis pain with a modern metal‑and‑plastic joint. Many patients who reach the stage of shoulder arthritis also have cuff problems, which is why reverse procedures have become more common in recent years. To find out whether you’re a candidate, consult with the orthopedic team at Summit Orthopaedics in Idaho Falls at (208) 227‑1100 or visit summitortho.net.

Chapters

‍00:00 Introduction: what a reverse total shoulder replacement is

‍00:14 Arthritis plus rotator cuff deficiency

‍00:40 How reversing the ball and socket changes shoulder mechanics

‍01:10 What patients often notice after surgery

‍01:36 Who may benefit and how to take the next step

One of the newer advances in shoulder care is the reverse total shoulder replacement. We’ve used artificial shoulder replacements for years to treat arthritis—similar to hips and knees. But the shoulder is different because the ball-and-socket joint relies on the rotator cuff: a group of tendons and muscles that stabilize the joint and start shoulder motion.

If someone has shoulder arthritis and a torn or nonfunctioning rotator cuff, a standard (anatomic) shoulder replacement may relieve pain but often doesn’t restore motion. A reverse shoulder replacement flips the mechanics: the ball goes where the socket used to be, and the socket goes on the arm side. This design lets the deltoid muscle take over much of the lifting work when the rotator cuff can’t.

With a reverse shoulder, you typically get pain relief from the arthritis (metal-and-plastic joint surfaces) and better ability to raise the arm. That’s why many patients with cuff deficiency and arthritis are now treated with a reverse shoulder rather than a standard replacement. For people who haven’t been able to lift their arm for a long time, being pain-free and mobile again can be life-changing.

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