Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada; Federal University of Health Sciences of Porto Alegre, Porto Alegre, RS, Brazil; Physique - Physical Therapy Centre, Porto Alegre, RS, Brazil.
Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada; McCaig Institute for Bone and Joint Health, University of Calgary, Calgary, AB, Canada; Health Centre, Federal University of Santa Catarina, Florianópolis, SC, Brazil.
Clin Biomech (Bristol). 2022 Jul;97:105708. doi: 10.1016/j.clinbiomech.2022.105708. Epub 2022 Jun 18.
A high prevalence of femoral version abnormalities has been observed in hip pain patients, with impact on hip range of motion and muscle strength that should be elucidated.
Cross-sectional study. Thirty-one patients with hip pain (16 men and 15 female) were subjected to Biplanar X-Rays to quantify femoral version using three-dimensional measurements. The 62 hips were divided into normal version (10-20°, n = 18), anteverted (>20°, n = 19), and retroverted (<10°, n = 25). Joint range of motion for flexion, internal rotation, and external rotation was assessed through digital goniometry. Maximal isometric hip strength (flexion, extension, internal rotation, external rotation at 0° and 30°, abduction, adduction) was evaluated through hand-held dynamometry. Hip rotation index was calculated as external rotation minus internal rotation.
Anteverted hips had greater internal rotation, while retroverted hips had greater external rotation (p = 0.001). Anteverted hips were weaker than retroverted hips for external rotation at 30° (p < 0.001), abduction (p = 0.006) and adduction (p < 0.001), and weaker than normal version hips for extension (p = 0.018). All three groups had different rotation index: retroverted>normal>anteverted (p < 0.001). The ordinal logistic regression found higher values of rotation index with higher probability of being retroverted (common odds ratio = 1.20). There was a strong correlation between femoral version group and rotation index (r = 0.76, p < 0.001). There was probability >70% of a hip being anteverted if the rotation index was <11°, and being retroverted if the index was >40°.
Range of motion and muscle strength differed in hips with different femoral versions. The hip rotation index was a strong femoral version predictor.
髋关节疼痛患者中存在较高的股骨前倾角异常发生率，这会影响髋关节活动范围和肌肉力量，需要进一步阐明。
这是一项横断面研究。31 名髋关节疼痛患者（男 16 例，女 15 例）接受双平面 X 射线检查，使用三维测量来量化股骨前倾角。62 个髋关节分为正常前倾角（10-20°，n=18）、前倾（>20°，n=19）和后倾（<10°，n=25）。通过数字测角仪评估髋关节的屈伸、内旋和外旋活动范围。通过手持测力计评估最大等长髋关节力量（屈伸、外展、内收，在 0°和 30°时的外旋、内旋、外展、内收）。髋关节旋转指数定义为外旋减去内旋。
前倾髋关节的内旋角度较大，而后倾髋关节的外旋角度较大（p=0.001）。与后倾组相比，前倾组在 30°外旋（p<0.001）、外展（p=0.006）和内收（p<0.001）时较弱，与正常前倾角组相比，在后伸（p=0.018）时较弱。三组的旋转指数不同：后倾>正常>前倾（p<0.001）。有序逻辑回归发现，旋转指数越高，后倾的可能性越大（常见比值比=1.20）。股骨前倾角组与旋转指数之间存在很强的相关性（r=0.76，p<0.001）。如果旋转指数<11°，髋关节前倾的可能性>70%；如果指数>40°，髋关节后倾的可能性>70%。
不同股骨前倾角的髋关节活动范围和肌肉力量不同。髋关节旋转指数是股骨前倾角的有力预测指标。
