Suzuki Daisuke, Nagoya Satoshi, Takashima Hiroyuki, Tateda Kenji, Yamashita Toshihiko
Department of Musculoskeletal Biomechanics and Surgical Development, Sapporo Medical University, Sapporo, 060-8556, Japan.
Department of Rehabilitation, Faculty of Health Science, Hokkaido Chitose College of Rehabilitation, Chitose, 066-0055, Japan.
Clin Anat. 2017 Sep;30(6):753-760. doi: 10.1002/ca.22945. Epub 2017 Jul 6.
This study was designed specifically to determine the normal acetabular orientation and femoral head covering, and whether these are affected by age or sex. Computed tomographic images of normal Japanese hip joints were used (males 60, females 60; mean age 48.3 years, range 15-79 years). Male and female age profiles were matched. The reconstructed 3-D pelvic images were aligned in the anatomical pelvic coordinate system. The acetabular orientation angles and femoral covering angles were measured in the sagittal, coronal, and horizontal planes. In the sagittal plane, the acetabular orientation angle was operative anteversion (O-av), and the femoral covering angles were the anterior and posterior center-edge angles (ACE and PCE). In the coronal plane, they were the Sharp angle (SA) and the lateral center-edge angle (LCE). In the horizontal plane, they were anatomical anteversion (A-av) and the anterior and posterior sector angles (ASA and PSA). The O-av, SA, and A-av were smaller in the male than the female acetabulum (P < 0.01). SA in both males and females was inversely correlated with age (P < 0.01). Both male PCE and PSA were significantly smaller than those of females, while male ASA was larger than female ASA (P < 0.05). The male acetabulum is directed further outward and downward than the female one. However, this does not indicate that the male acetabulum covers the femoral head more, because there is no significant sex difference in the LCE. Femoral coverage is more posteriorly biased in females than in males owing to pelvic inclination. Clin. Anat. 30:753-760, 2017. © 2017Wiley Periodicals, Inc.
本研究旨在专门确定正常髋臼方向和股骨头覆盖情况，以及它们是否受年龄或性别的影响。使用了正常日本髋关节的计算机断层扫描图像（男性60例，女性60例；平均年龄48.3岁，范围15 - 79岁）。男性和女性的年龄分布相匹配。重建的三维骨盆图像在解剖学骨盆坐标系中对齐。在矢状面、冠状面和水平面测量髋臼方向角和股骨头覆盖角。在矢状面，髋臼方向角为手术前倾角（O - av），股骨头覆盖角为前后中心边缘角（ACE和PCE）。在冠状面，它们是夏普角（SA）和外侧中心边缘角（LCE）。在水平面，它们是解剖学前倾角（A - av）和前后扇形角（ASA和PSA）。男性髋臼的O - av、SA和A - av比女性小（P < 0.01）。男性和女性的SA均与年龄呈负相关（P < 0.01）。男性的PCE和PSA均显著小于女性，而男性的ASA大于女性的ASA（P < 0.05）。男性髋臼比女性髋臼更向外和向下。然而，这并不表明男性髋臼对股骨头的覆盖更多，因为LCE没有显著的性别差异。由于骨盆倾斜，女性的股骨头覆盖在后方比男性更明显。临床解剖学。30:753 - 760, 2017。© 2017威利期刊公司。
