Component Alignment in Hip Resurfacing Using Computer Navigation
نویسندگان
چکیده
منابع مشابه
Imageless computer navigation for placement of the femoral component in resurfacing arthroplasty of the hip.
We have investigated the accuracy of placement of the femoral component using imageless navigation in 100 consecutive Birmingham Hip Resurfacings. Pre-operative templating determined the native neck-shaft angle and planned stem-shaft angle of the implant. The latter were verified post-operatively using digital anteroposterior unilateral radiographs of the hip. The mean neck-shaft angle determin...
متن کاملReply to Letter to Editor: Femoral Component Positioning in Hip Resurfacing with and Without Navigation
We acknowledge Dr. Andrea Emilio Salvi for his general comments and opinions on hip resurfacing surgical technique and factors that may affect clinical outcome. Even if no specific question or comment is directly related to our study [2], we will try to provide a scientific input on the points raised. The first ‘‘procedural trap’’ reported by Dr. Salvi is in relation to the femoral component st...
متن کاملLetter to the Editor: Femoral Component Positioning in Hip Resurfacing with and Without Navigation
UNLABELLED Early failures after hip resurfacing often are the result of technical errors in placing the femoral component. We asked whether image-free computer navigation decreased the number of outliers compared with the conventional nonnavigated technique. We retrospectively compared 51 consecutive hip resurfacings performed using image-free computer navigation with 88 consecutive hip resurfa...
متن کاملFemoral neck fracture following hip resurfacing: the effect of alignment of the femoral component.
A total of 20 pairs of fresh-frozen cadaver femurs were assigned to four alignment groups consisting of relative varus (10 degrees and 20 degrees) and relative valgus (10 degrees and 20 degrees), 75 composite femurs of two neck geometries were also used. In both the cadaver and the composite femurs, placing the component in 20 degrees of valgus resulted in a significant increase in load to fail...
متن کاملAlignment Analyses in the Varus Osteoarthritic Knee Using Computer Navigation.
Osteoarthritic (OA) knees with severe extension varus deformity seem to have correspondingly more severe flexion varus, especially beyond a certain tibiofemoral angle. Clinical measurement of flexion varus and fixed flexion deformity (FFD), which had been difficult to perform because of the spatial alignment of the knee in flexion, was recently made possible with computer navigation. We conduct...
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ژورنال
عنوان ژورنال: Clinical Orthopaedics and Related Research
سال: 2008
ISSN: 0009-921X,1528-1132
DOI: 10.1007/s11999-008-0584-x