Advanced glenohumeral osteoarthritis can transform glenoid morphology and, motovox scooter parts in some cases, is found in association with severe glenoid retroversion.The associated glenoid retroversion leads to difficulty in fixation of the glenoid component in reverse total shoulder arthroplasty.In the context of extreme glenoid wear, structural grafts can be used to restore glenoid volume and version in order for the glenoid component of the reverse total shoulder arthroplasty to be more easily implanted.Nevertheless, literature regarding structural grafts remains limited, with optimal graft choice and technique still controversial at best.This article details our technique for humeral head autograft transplantation nacrack.com before reverse total shoulder arthroplasty in the context of extreme glenoid retroversion with advanced osteoarthritis.