Cup arthroplasty is a conservative bone-sparing option for resurfacing of the humeral head. Earlier reports have shown its effectiveness in appropriately selected patients with osteoarthritis, osteonecrosis, and severe rheumatoid arthritis. Patients with cuff tear arthropathy may also benefit from a modified cup arthroplasty technique. The purpose of this article is to describe the surgical technique involved in humeral cup arthroplasty in cuff tear arthropathy patients. We will review the indications, contraindications, complications, and postoperative rehabilitation.
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