Goudie S T, Deakin A H, Deep K
Golden Jubilee National Hospital, Agamemnon Street, Clydebank, Glasgow, G81 4DY, UK.
Bone Joint Res. 2015 Jan;4(1):6-10. doi: 10.1302/2046-3758.41.2000286.
Acetabular component orientation in total hip arthroplasty (THA) influences results. Intra-operatively, the natural arthritic acetabulum is often used as a reference to position the acetabular component. Detailed information regarding its orientation is therefore essential. The aim of this study was to identify the acetabular inclination and anteversion in arthritic hips.
Acetabular inclination and anteversion in 65 symptomatic arthritic hips requiring THA were measured using a computer navigation system. All patients were Caucasian with primary osteoarthritis (29 men, 36 women). The mean age was 68 years (SD 8). Mean inclination was 50.5° (SD 7.8) in men and 52.1° (SD 6.7) in women. Mean anteversion was 8.3° (SD 8.7) in men and 14.4° (SD 11.6) in women.
The difference between men and women in terms of anteversion was significant (p = 0.022). In 75% of hips, the natural orientation was outside the safe zone described by Lewinnek et al (anteversion 15° ± 10°; inclination 40° ± 10°).
When using the natural acetabular orientation to guide component placement, it is important to be aware of the differences between men and women, and that in up to 75% of hips natural orientation may be out of what many consider to be a safe zone. Cite this article: Bone Joint Res 2015;4:6-10.
全髋关节置换术（THA）中髋臼假体的方向会影响手术效果。在手术中，常以自然的关节炎性髋臼作为髋臼假体定位的参照。因此，关于其方向的详细信息至关重要。本研究的目的是确定患有关节炎的髋关节的髋臼倾斜度和前倾角。
使用计算机导航系统测量了65例因症状性关节炎而需要进行THA的髋关节的髋臼倾斜度和前倾角。所有患者均为白种人，患有原发性骨关节炎（男性29例，女性36例）。平均年龄为68岁（标准差8岁）。男性的平均倾斜度为50.5°（标准差7.8°），女性为52.1°（标准差6.7°）。男性的平均前倾角为8.3°（标准差8.7°），女性为14.4°（标准差11.6°）。
男性和女性在前倾角方面的差异具有统计学意义（p = 0.022）。在75%的髋关节中，自然方向超出了Lewinnek等人描述的安全区（前倾角15°±10°；倾斜度40°±10°）。
当使用自然髋臼方向来指导假体放置时，重要的是要意识到男性和女性之间的差异，并且在高达75%的髋关节中，自然方向可能超出许多人认为的安全区。引用本文：《骨与关节研究》2015年；4：6 - 10。
