Figure 1: A 58-year-old male (Case 2) presented 6 months after reverse arthroplasty for failed fracture fixation with anterior dislocation of the prosthesis. (a and b) Grashey view and axillary view of the dislocated prosthesis. Notice the superior placement of the glenosphere with slight superior tilt. At the time of revision surgery, no combination of glenosphere or reverse humeral component could result in stability as the prosthesis levered out with adduction past 40 degrees. Removal of a well-fixed glenosphere and baseplate was performed and glenoid bone stock was not sufficient for immediate revision of the baseplate to an improved position. (c and d) Conversion to large head hemiarthroplasty and bone grafting of glenoid defect. Cultures were positive for P. acnes at the time of revision