PDF(Pubmed)
Abstract：
BACKGROUND: The morphology of coxa profunda remains inadequately understood. However, knowledge about the characteristics of the acetabulum in coxa profunda can help to predict pelvic morphology in three dimensions based on radiographic findings, as well as help to diagnose and predict hip pathologies. Therefore, this study aimed to investigate the relationship between the morphological characteristics of the pelvis and coxa profunda.
METHODS: We conducted a retrospective analysis including women who had undergone unilateral total hip arthroplasty. Only those with normal hip joint morphology on the opposite side, as evidenced by anteroposterior pelvic radiography showing a distance of ≥ 2 mm between the ilioischial line and acetabular floor, were included. Five parameters related to acetabular anteversion, thickness, and the position of the ilioischial line were measured using axial computed tomography at the central hip joint. The coxa profunda group (n = 39) and control group (n = 34) were compared.
RESULTS: The mean acetabular anteversion angle was 12.5° ± 4° in the control group and 22.3° ± 5.6° in the coxa profunda group. The mean thickness from the acetabular fossa to the medial wall was 7.5 ± 1.7 mm in the control group and 3.9 ± 1.2 mm in the coxa profunda group. Furthermore, the bony region representing the ilioischial line was positioned more posteriorly in the coxa profunda group than it was in the control group.
CONCLUSIONS: Our findings suggest that coxa profunda in women is associated with anterior acetabular dysplasia and a thin acetabulum, in contrast to previous interpretations of excessive coverage. This insight suggests a conversion of coxa profunda from a finding of pincer-type femoroacetabular impingement to a finding of acetabular dysplasia, a revelation that also draws attention to cup positioning for total hip arthroplasty.
METHODS: We conducted a retrospective analysis including women who had undergone unilateral total hip arthroplasty. Only those with normal hip joint morphology on the opposite side, as evidenced by anteroposterior pelvic radiography showing a distance of ≥ 2 mm between the ilioischial line and acetabular floor, were included. Five parameters related to acetabular anteversion, thickness, and the position of the ilioischial line were measured using axial computed tomography at the central hip joint. The coxa profunda group (n = 39) and control group (n = 34) were compared.
RESULTS: The mean acetabular anteversion angle was 12.5° ± 4° in the control group and 22.3° ± 5.6° in the coxa profunda group. The mean thickness from the acetabular fossa to the medial wall was 7.5 ± 1.7 mm in the control group and 3.9 ± 1.2 mm in the coxa profunda group. Furthermore, the bony region representing the ilioischial line was positioned more posteriorly in the coxa profunda group than it was in the control group.
CONCLUSIONS: Our findings suggest that coxa profunda in women is associated with anterior acetabular dysplasia and a thin acetabulum, in contrast to previous interpretations of excessive coverage. This insight suggests a conversion of coxa profunda from a finding of pincer-type femoroacetabular impingement to a finding of acetabular dysplasia, a revelation that also draws attention to cup positioning for total hip arthroplasty.
摘要：
背景：对牛深的形态仍未充分了解。然而,关于髋臼的特征的知识可以帮助预测骨盆形态学在三维的基础上，以及帮助诊断和预测髋关节病变。因此,本研究旨在探讨骨盆形态特征与髋臼的关系。
方法：我们对接受单侧全髋关节置换术的女性进行了回顾性分析。只有对侧髋关节形态正常的,前骨盆后路造影显示髂坐骨线和髋臼底之间的距离≥2mm,包括在内。与髋臼前倾有关的五个参数，厚度,使用中央髋关节的轴向计算机断层扫描测量the骨的位置。比较对比组(n=39)和对照组(n=34)。
结果：对照组平均髋臼前倾角为12.5°±4°，髋臼前倾角为22.3°±5.6°。对照组从髋臼窝到内壁的平均厚度为7.5±1.7mm，深髋臼组为3.9±1.2mm。此外，在coxaprofunda组中，代表髂坐线的骨区比对照组更靠后。
结论：我们的研究结果表明，女性髋臼深与前髋臼发育不良和髋臼薄有关，与以前对过度报道的解释相反。这种见解表明，从钳形股骨髋臼撞击的发现到髋臼发育不良的发现，这也引起了人们对全髋关节置换术的杯定位的关注。
方法：我们对接受单侧全髋关节置换术的女性进行了回顾性分析。只有对侧髋关节形态正常的,前骨盆后路造影显示髂坐骨线和髋臼底之间的距离≥2mm,包括在内。与髋臼前倾有关的五个参数，厚度,使用中央髋关节的轴向计算机断层扫描测量the骨的位置。比较对比组(n=39)和对照组(n=34)。
结果：对照组平均髋臼前倾角为12.5°±4°，髋臼前倾角为22.3°±5.6°。对照组从髋臼窝到内壁的平均厚度为7.5±1.7mm，深髋臼组为3.9±1.2mm。此外，在coxaprofunda组中，代表髂坐线的骨区比对照组更靠后。
结论：我们的研究结果表明，女性髋臼深与前髋臼发育不良和髋臼薄有关，与以前对过度报道的解释相反。这种见解表明，从钳形股骨髋臼撞击的发现到髋臼发育不良的发现，这也引起了人们对全髋关节置换术的杯定位的关注。
