Figure 4: Radiographic image of arthrodesis of the shoulder with three cannulated screws. Observe the staples which close arthroscopic portals, without requiring larger incisions. Glenohumeral and acromiohumeral stability is ascertained by the degree of compression that is achieved. Clavicle osteosynthesis is also noteworthy; this had been performed 7 months previously, using an osteosynthesis plate (1996)