Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.

The occurrence of peripheral neurologic lesions following reverse shoulder arthroplasty is relatively common, but usually transient. Arm lengthening with a reverse shoulder arthroplasty may be responsible for these nerve injuries.

Comparatively good outcomes were observed in the short to intermediate term after reverse shoulder arthroplasty in patients with rheumatoid arthritis. However, surgeons should be aware of the risk of intraoperative and postoperative fractures in this patient group.