Department of Orthopaedic Surgery, MedSport, University of Michigan Medical School, Ann Arbor, Michigan.
University of Michigan Medical School, Ann Arbor, Michigan.
J Arthroplasty. 2014 Feb;29(2):373-6. doi: 10.1016/j.arth.2013.05.015. Epub 2013 Jun 18.
The purpose of this study was to compare the acetabular version between male and female pelvises. We hypothesized that female acetabula would demonstrate more retroversion because Pincer-type femoroacetabular impingement (FAI) is associated with acetabular retroversion, which is more commonly observed in females. 120 bony pelvic specimens were randomly collected. The version was measured at three different axial sections of each acetabulum: cranial, central, and caudal. Males demonstrated significantly less anteversion than females in every section. The global version (the average of all three measurements) was also significantly different between males and females (16° ± 7° and 19° ± 8° respectively, P<0.001). Of the 240 examined acetabuli, 21 demonstrated cranial retroversion (16 males & 5 females). The data showed no significant difference (P=0.353) between global version of African Americans (18° ± 9°) and Caucasians (17° ± 7°). The results of this study suggest that symptomatic FAI in the female population likely reflects a complex interplay of femoral and acetabular dysmorphology and cannot be explained by differences in acetabular version alone.
本研究旨在比较男女骨盆的髋臼版本。我们假设女性髋臼会表现出更多的后倾，因为钳夹型股骨髋臼撞击（FAI）与髋臼后倾有关，而女性更常见髋臼后倾。120 个骨性骨盆标本被随机收集。在每个髋臼的三个不同轴向节段测量了版本：颅侧、中央和尾侧。男性在每个节段的前倾角均明显小于女性。髋臼的整体版本（三个测量值的平均值）在男性和女性之间也有显著差异（分别为 16°±7°和 19°±8°，P<0.001）。在 240 个检查的髋臼中，21 个表现为颅侧后倾（16 名男性和 5 名女性）。数据显示，非裔美国人（18°±9°）和高加索人（17°±7°）的髋臼整体版本之间没有显著差异（P=0.353）。本研究结果表明，女性人群中出现症状性 FAI 可能反映了股骨和髋臼形态异常的复杂相互作用，不能仅用髋臼版本的差异来解释。
