Konrath G A, Hamel A J, Olson S A, Bay B, Sharkey N A
Department of Orthopaedic Surgery, University of California-Davis Medical Center, Sacramento 95817, USA.
J Bone Joint Surg Am. 1998 Dec;80(12):1781-8. doi: 10.2106/00004623-199812000-00008.
We performed a biomechanical study of seventeen hip joints in the pelves of nine cadavera in order to assess the role that the acetabular labrum and the transverse acetabular ligament play in load transmission. The distribution of contact area and pressure between the acetabulum and the femoral head was measured with the hip in four different conditions: intact (seventeen hips), after removal of the transverse acetabular ligament (eight hips), after removal of the entire labrum (nine hips), and after removal of both the transverse acetabular ligament and the labrum (seventeen hips). The hip joint was loaded in simulated single-limb stance, and the measurements were made with use of pressure-sensitive film. A peripheral distribution of load was seen in the intact acetabula. This pattern was altered only minimally after removal of the transverse acetabular ligament or the labrum, or both. When both of these structures were removed, the only significant change was a decrease in the maximum pressure in the posterior aspect of the acetabulum (p = 0.02). No significant changes were detected with regard to the contact area, load, mean pressure, or maximum pressure in the anterior or superior aspect of the acetabulum under any testing condition.
我们对9具尸体骨盆中的17个髋关节进行了生物力学研究，以评估髋臼唇和髋臼横韧带在负荷传递中所起的作用。在四种不同情况下测量髋臼与股骨头之间的接触面积和压力分布：完整状态（17个髋关节）、去除髋臼横韧带后（8个髋关节）、去除整个髋臼唇后（9个髋关节）以及去除髋臼横韧带和髋臼唇后（17个髋关节）。髋关节在模拟单腿站立状态下加载，并使用压敏胶片进行测量。在完整的髋臼中可见负荷的周边分布模式。去除髋臼横韧带或髋臼唇或两者后，这种模式仅发生了极小的改变。当去除这两个结构时，唯一显著的变化是髋臼后部的最大压力降低（p = 0.02）。在任何测试条件下，髋臼前部或上部的接触面积、负荷、平均压力或最大压力均未检测到显著变化。
