Robinson R P, Simonian P T, Gradisar I M, Ching R P
Section of Orthopaedics, Virginia Mason Medical Center, Seattle, Washington 98101, USA.
J Bone Joint Surg Br. 1997 Jan;79(1):140-6. doi: 10.1302/0301-620x.79b1.6842.
A three-dimensional computer model of a total hip replacement was used to examine the relationship between the position of the components, the range of motion and the prosthetic joint contact area. Horizontal acetabular positions with small amounts of acetabular and femoral anteversion provide the largest contact areas, but result in limited joint movement. These data will allow surgeons to select implant positions that will provide the largest possible joint contact area for a given joint range of motion although these are conflicting goals. In some component positions a truncated spherical prosthetic head resulted in smaller contact areas than a completely spherical head.
使用全髋关节置换的三维计算机模型来研究组件位置、运动范围和假体关节接触面积之间的关系。髋臼水平位置以及少量的髋臼和股骨前倾可提供最大的接触面积，但会导致关节活动受限。这些数据将使外科医生能够选择植入位置，尽管这些目标相互冲突，但在给定的关节活动范围内，这些位置将提供尽可能大的关节接触面积。在某些组件位置，截顶球形假头的接触面积比完全球形头的接触面积小。
