Femoral loosening in total hip replacement.
Ten cases of loosening of the femoral component following a Charnley total hip replacement were noted in a series of 160 patients. In 3 patients, the femoral component bent without fracturing. All of the patients were overweight. Loosening occurred despite the fact that the femoral component was in a valgus position in 9 of the 10 cases. Collapse of the cancellous bone in the region of the calcar may be a manifestation of the stress of excessive body weight upon the femoral component.
D000328:Adult; D001827:Body Height; D001835:Body Weight; D005260:Female; D005269:Femur; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D007595:Joint Prosthesis / Q000295:instrumentation; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D011859:Radiography; D013997:Time Factors