Femoral cement pressurization during total hip arthroplasty. The role of different femoral stems with reference to stem size and shape.
Femoral cement pressurization during total hip arthroplasty. The role of different femoral stems with reference to stem size and shape.
复制标题
全髋关节置换术期间股骨水泥加压。
DOI：
10.1097/00003086-198403000-00003
复制
发表时间：
1984
影响因子：
4.2
通讯作者：
W. Harris
中科院分区：
文献类型：
--
作者：
R. Bourne;I. Oh;W. Harris
无菌性松动是全髋关节置换术（THA）后股骨部件失效的最常见原因。骨水泥固定技术已有所改进，但很少关注不同股骨部件对骨水泥加压的影响。在尸检标本上研究了一个股骨髓腔中三种不同股骨柄尺寸和八种不同股骨柄设计对骨水泥挤出压力的影响。在给定的股骨中，从小号股骨柄到中号股骨柄再到大号股骨柄，股骨部件远端三分之二的骨水泥加压显著增加。同样，由于股骨柄体积增加，具有圆形、矩形横截面的股骨柄在股骨柄远端三分之二周围产生的骨水泥加压大于横截面为梯形和菱形的股骨柄。本研究的结果支持使用最大的股骨部件股骨柄，最好是具有圆形矩形横截面的股骨柄，该股骨柄将舒适地配合在给定的股骨髓腔中，并且仍然允许周围的骨水泥包封，使得骨水泥加压将随着植入物的引入而增强。
Aseptic loosening is the most common cause of femoral component failure following total hip arthroplasty (THA). Improvements have been made in cementing technique, but little attention has been directed toward the effect of different femoral components on bone cement pressurization. The effect of three different femoral stem sizes in one femoral canal and of eight different femoral stem designs on bone cement extrusion pressures was investigated on autopsy specimens. In a given femur significant increases in bone cement pressurization were achieved about the distal two-thirds of the femoral component in progressing from a small to a medium to a large stem. Similarly, femoral stems with rounded, rectangular cross sections generated greater bone cement pressurization about the distal two-thirds of the stems than stems trapezoidal and diamond-shaped in cross section due to their increased stem volume. The results of this study favor the use of the largest femoral component stem, preferably one with a rounded, rectangular cross section, that will fit comfortably in a given femoral canal and still allow a surrounding cement envelope such that bone cement pressurization will be enhanced with implant introduction.