Femoral Component Using the Impact Modular Total Hip Implant
Revision of the femoral component in total hip replacement is a time-consuming and complicated procedure that requires an array of instrumentation and techniques. In some cases the cancellous bone and a cylindrical cortical structure remain intact and require no special grafting, fixation, or exposure techniques, whereas other cases require all three. Radiographic appearance is unreliable for preoperative planning in any case, and an elaborate array of instruments and an extensive implant selection should be available at the outset. Even cases that appear relatively simple often have angular deformity, complete loss of cancellous bone, peripheral defects, deficient cortical bone, patulous proximal femur, and fragile diaphyseal cortical bone. To deal with these challenges, proximal and distal fixation of the femoral component generally is considered necessary,1-4 but proximal stress relief and subsequent osteoporosis are long-term issues that must be addressed when using these techniques.5-9
KeywordsProximal Femur Femoral Component Metaphyseal Bone Deep Femoral Artery Diaphyseal Bone
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