Konishi N, Mieno T
Department of Orthopaedics, Aichiken-Saiseikai Hospital, Nagoya, Japan.
J Bone Joint Surg Am. 1993 Sep;75(9):1318-33. doi: 10.2106/00004623-199309000-00007.
We developed a method for the estimation of three-dimensional acetabular coverage of the femoral head with use of only an anteroposterior radiograph of the hip. This technique also allows recalculation of the corrected value for coverage at neutral pelvic tilt. Provided that the acetabulum and femoral head are spherical and congruent, the results are as accurate as those obtained with computerized tomographic reconstruction, the dose of radiation is much lower, and much less time is required for calculation. The hips of 286 normal subjects showed increases with age in both anterior and posterior coverage and backward tilt of the pelvis, along with a decrease in the anterior-posterior ratio of coverage. The proportion of anterior acetabular coverage in female subjects was smaller than that in male subjects. There was more backward tilt of the pelvis and the anterior-posterior ratio of coverage was smaller when the subjects were standing than when they were supine.
我们开发了一种仅使用髋关节前后位X线片来估计股骨头三维髋臼覆盖度的方法。该技术还允许重新计算中立骨盆倾斜位时覆盖度的校正值。假设髋臼和股骨头呈球形且相互匹配，其结果与计算机断层扫描重建所获得的结果一样准确，辐射剂量低得多，计算所需时间也少得多。286名正常受试者的髋关节显示，随着年龄增长，前后覆盖度均增加，骨盆向后倾斜，同时覆盖度的前后比值减小。女性受试者髋臼前侧覆盖度的比例小于男性受试者。受试者站立时骨盆向后倾斜更多，覆盖度的前后比值也比仰卧时小。
