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Types of shoulder replacement
The two most common types of shoulder replacement are
Primary Total Shoulder Replacement
Reverse Total Shoulder Replacement
Both types replace the “total” shoulder joint, meaning an implant replaces the damaged parts of both the “ball” and “socket” of the shoulder joint. The major differences between the two types is the position of the implants and the muscle groups used for movement after surgery.
What happens during shoulder replacement?
During a primary total shoulder replacement, the ball (humeral head) of the shoulder joint is replaced with an implant that includes a stem with a smooth, rounded metal head. The socket (glenoid) is replaced with a smooth, rounded plastic cup that fits the rounded metal head. Primary total shoulder replacement mimics the natural ball and socket anatomy of the shoulder joint and may be recommended for patients with advanced arthritis of the shoulder joint and a healthy, intact rotator cuff.
During a reverse total shoulder replacement, the ball (humeral head) of the shoulder joint is replaced with an implant that includes a stem with a curved plastic tray. The socket (glenoid) is replaced with a rounded metal head that moves inside the curved plastic tray. It’s called a Reverse because the implants reverse the ball and socket of the shoulder joint which allows the stronger deltoid muscles to take over for strength and function. Reverse total shoulder replacement may be recommended for patients with:
completely torn or irreparable rotator cuff tendons
cuff tear arthropathy (shoulder arthritis with a large rotator cuff tear)
severe shoulder fracture
shoulder dislocation and a large rotator cuff tear
See Shoulder Pain for more information on these conditions
What types of implants are used for shoulder replacement?
There are different types of shoulder replacement implants available. Your surgeon will evaluate you and your situation before choosing an implant that best meets your health needs. To learn more about the shoulder replacement implants available from Wright, see our Shoulder Solutions page.
When is shoulder replacement recommended?
Shoulder replacement may be recommended if you have tried and failed to get relief from rest, ice or moist heat, physical therapy, nonsteroidal anti-inflammatory medications (NSAIDs aspirin or ibuprofen) and corticosteroid injections in the shoulder.