Reverse Shoulder Replacement
Reverse total shoulder replacement flips the normal ball-and-socket geometry: a metal ball is fixed to the shoulder blade and the socket component attaches to the upper arm bone. This design lets the deltoid muscle (not the rotator cuff) power shoulder elevation. The procedure was engineered for rotator cuff tear arthropathy, where advanced arthritis develops alongside an irreparable rotator cuff tear. Conventional shoulder replacement fails in these patients; reverse replacement routinely restores the ability to lift the arm overhead.
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Who Needs Reverse Shoulder Replacement?
Primarily used for rotator cuff tear arthropathy (severe arthritis with an irreparable rotator cuff), massive irreparable rotator cuff tears causing pseudoparalysis (inability to raise the arm despite intact cartilage), and failed conventional shoulder replacement. Also used for complex proximal humerus fractures in older patients where repair is not viable. Most patients are over 65, though younger patients with no alternatives are increasingly treated.
What to Expect
Recovery Timeline
Arm in a sling full time. Passive pendulum exercises begin immediately to prevent stiffness. Pain managed with nerve block tapering to oral medications.
Sling use continues. Gentle exercises with guidance. Most patients experience dramatic pain relief before full motion returns.
Sling discontinued. Active range-of-motion and progressive shoulder strengthening. Many patients reach overhead by 8-10 weeks.
Continued strengthening. Driving, cooking, and light recreational activities resume for most patients.
Maximum functional recovery. Most patients gain 90-120 degrees of forward elevation, which covers most daily activities. Heavy lifting and contact sports remain restricted long term.
Risks & Complications
- Infection (1-2%)
- Implant instability or dislocation
- Scapular notching — bone wear from implant contact that can affect longevity
- Axillary nerve injury
- Acromial stress fracture from increased deltoid forces
- Component loosening requiring revision after 15-20 years
Frequently Asked Questions
How is reverse shoulder replacement different from a regular shoulder replacement?
A conventional shoulder replacement mimics normal anatomy: the ball stays on the humerus and the socket on the glenoid. It works when the rotator cuff is intact to stabilize the joint. When the rotator cuff is gone, the ball migrates upward and the replacement fails quickly. Reverse replacement puts the ball on the glenoid side, shifting the center of rotation so the deltoid can raise the arm without any rotator cuff. It is a workaround that produces reliable results in patients who have no other option.
What activities can I do after reverse shoulder replacement?
Most patients regain functional daily use: reaching overhead, dressing, washing hair, light cooking. Heavy lifting above 25 pounds and repetitive overhead labor are typically restricted long term to protect the implant. Golf, swimming, and cycling are generally reasonable after recovery. Contact sports are avoided.
How long does a reverse shoulder replacement last?
Implant survival at 10 years runs 85-90% in most studies. Long-term data is less extensive than for hip and knee replacement since wide adoption came later. Scapular notching (wear at the inferior glenoid edge) is the primary long-term concern and varies by implant design.
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$20,000 - $45,000 (before insurance). Covered by Medicare and most commercial plans when medically indicated. The reverse implant costs significantly more than a conventional shoulder replacement.
Full cost breakdownRelated Specialty
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This information is for educational purposes only. Costs are estimates and vary by location, surgeon, and insurance. Always consult a qualified healthcare provider.