Figure 1From: Clavicular hook plate may induce subacromial shoulder impingement and rotator cuff lesion - dynamic sonographic evaluationAcromial erosion. A 41-year-old man who received hook plate fixation for left AC dislocation. (A) Anteroposterior view of the left shoulder 3Â months postoperatively before implant removal showed remarkable acromial osteolysis (arrow). (B) The bony defect was still visible 1Â month after implant removal (arrow).Back to article page