Abstract
Integrity of the rotator cuff, available bone stock and shape of the arthritic glenoid are the most important factors in the preoperative planning of total shoulder arthroplasty (TSA) and its outcome. The expectations regarding the functional outcome of a shoulder surgery are lower when the integrity of the rotator cuff is not adequate [van de Sande, 2005]. When a cementless glenoid component is used, its initial mechanical stability is highly relevant for the later implant fixation via bone ingrowth. The aim of this study is to quantify the initial mechanical stability of a cementless glenoid implant when a deficiency of the rotator cuff tendon is present.
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