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Fluoroscopic anteroposterior view of repair of unstable os acromiale in a right shoulder. A combination of two 3.5-mm cannulated partially threaded screws and additional tension-band wiring with two 18-gauge wires is applied to resist the inferior bending moment applied by the deltoid. The combination of cannulated screws and additional tension-band wiring has shown superior biomechanical results compared with cannulated screws alone.
