A patient presented to the office approximately one year after a total shoulder using a caged glenoid component (one with metal around the polyethylene pegs) inserted with the goal of cementless fixation.
While reaching out to the side, she felt a loud pop in her left shoulder. She presented with this x-ray showing fracture and displacement of the glenoid component.
The track record of cementless glenoid fixation needs careful review, as suggested by this chart from the Australian Registry (see this link):
Interestingly, this patient had her right shoulder arthritis treated with a hemiarthroplasty over ten years ago and continues to have full range of motion, comfort and function. Below is her ten year post surgical x-ray. Note the absence of a glenoid component and the absence of glenoid erosion.
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