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Device and method for locating the anteroposterior femoral axis to determine proper femoral component rotation in knee replacement
Device and method for locating the anteroposterior femoral axis to determine proper femoral component rotation in knee replacement
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机译:在膝关节置换术中定位股骨前后轴以确定股骨适当旋转的装置和方法
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摘要
A device for indicating the location of the anteroposterior femoral axis has a spike or needle that engages the anterior-most point in the intercondylar notch and a rounded or spherical surface is placed on the trochlear groove of the femur and urged in a posterior direction. That is, the rounded surface or ball is urged toward the bottom of the trochlear groove. This causes the rounded surface or ball to self-locate into the deepest point of the trochlear groove. The anterior-most point in the intercondylar notch and the deepest part of the trochlear groove anteriorly are points that accurately determine the anteroposterior femoral axis, and the device includes a marking device or guide member that is fixed perpendicular to this axis. A surgeon, therefore, has an accurate indication of the correct femoral component rotation for proper implant position in a knee replacement or other surgical procedure.
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