Skeletal response to well fixed femoral components inserted with and without cement

摘要: Previous studies evaluating femoral remodeling after total hip arthroplasty have used clinical radiographs and dual energy xray absorptiometry. Limitation of these techniques make it impossible to quantify the magnitude bone loss in terms cortical thinning area mineral density changes. Femoral cemented cementless replacement was quantified possible determinants radiographic variables were evaluated. Forty-eight anatomic specimen femora from 24 patients with unilateral replacements analyzed. Cortical thickness, area, assessed 4 quadrants at 5 discrete levels. The maximum by level middle section for femurs midproximal sections femurs. However, if one examines individual quadrants, proximal medial cortex still represents specific region maximal both types implant fixation. posterior had substantially more loss, even diaphyseal levels, than been previously appreciated. A strong correlation noted between control femur percentage decrease remodeled femur. Based on this data, seems that less dense is before surgery, greater extent regardless fixation type.