Table 2.

Indications for reverse total shoulder arthroplasty

Diagnosis	Comment
Rotator cuff arthropathy	Classically described as arthritis that develops first at the acromiohumeral interface
Massive irreparable rotator cuff tear in the elderly	With or without previous attempt at repair
Four part unreconstructable proximal humerus fracture	Particularly in the elderly
Chronic shoulder dislocation in the elderly
Reconstruction after tumor resection
Failed previous replacement with cuff failure and/or instability
Any of the diagnoses listed in table one with rotator cuff problem, bone loss, instability, or severe deformity not conducive to anatomic TSA	For example, an elderly patient with intact rotator cuff may be better suited for reverse TSA due to glenoid bone loss due to B2 or B3 glenoid morphology