Section h10: (h3) the revision reported may have been the result of the humeral head articulating posteriorly, creating a shear force on the glenoid component, and leading to fracture of the polyethylene center peg and superior peripheral peg, and partial disengagement of the glenoid.Additional x-rays, such as original post-operative and others from before the revision, were requested and would help confirm the order of events in this case.However, at the time of this evaluation, no additional images were provided.
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