Terjesen T, Benum P, Anda S, Svenningsen S
Acta Orthop Scand. 1982 Aug;53(4):571-5. doi: 10.3109/17453678208992260.
The anteversion angle (AV-angle) of the femur was measured according to the method of Rippstein in a series of 50 patients with "primary" osteoarthritis of the hip, and in a control group of 30 individuals of the same age without hip disease. The median AV-angle of the hips in osteoarthritic patients was 17.5 degrees, and in the control group 13 degrees. Osteoarthritic patients had a significantly increased AV-angle in relation to the control group (P = 0.0028). The greatest AV-angle in the hips of the control group was 25 degrees. In 18 hips of osteoarthritic patients an AV-angle greater than 25 degrees was found. Osteoarthritis was found in 15 of these hips; there was no osteoarthritis in the remaining 3 hips. Our results lead to the conclusion that increased femoral anteversion is a predisposing factor for hip osteoarthritis. This implies that derotational osteotomy in children can be a prophylactic procedure.
采用里普斯坦（Rippstein）方法对50例患有“原发性”髋骨关节炎的患者以及30名同龄无髋部疾病的对照组个体测量了股骨前倾角度（AV角）。骨关节炎患者髋部的AV角中位数为17.5度，对照组为13度。与对照组相比，骨关节炎患者的AV角显著增大（P = 0.0028）。对照组髋部的最大AV角为25度。在骨关节炎患者的18个髋部中发现AV角大于25度。其中15个髋部发现有骨关节炎；其余3个髋部未发现骨关节炎。我们的结果得出结论，股骨前倾增加是髋骨关节炎的一个易感因素。这意味着儿童旋转截骨术可以作为一种预防性手术。
