Review and clinical presentation in reverse shoulder arthroplasty in deltoid palsy.

Deltoid palsy is a classical contraindication for reverse shoulder arthroplasty (RSA). However, in cases associating axillary nerve palsy and rotator cuff tear or glenohumeral arthritis, few options remain. We present a case in which combining RSA with transfer of the pectoralis major and upper and middle trapezius transfer provided satisfactory results in a patient suffering of both an irreparable rotator cuff tear and a deltoid palsy.Level of evidence IV.