Grant A D, Strongwater A, Lehman W, Nelson J, Atar D
Department of Neuromuscular and Developmental Disorders, Hospital for Joint Diseases, New York, NY 10003.
J Pediatr Orthop. 1990 Jan-Feb;10(1):9-13.
An angle within the femoral arch is defined, and its line is described in selecting the osteotomy site and the position of the fixation device in performing a femoral varus osteotomy. This neck metaphyseal angle was measured with varying degrees of rotation on seven pediatric femurs; it was also studied on 283 randomly selected hip radiographs. The angle varied 25-40 degrees in 90% of the patients and was not age related. The angle is stable within 5 degrees as long as the landmarks, base of the great trochanter, and medial metaphysis of the femoral neck are definable (0-30 degrees of rotation).
定义了股弓内的一个角度，并描述了其在进行股骨内翻截骨术时选择截骨部位和固定装置位置时的连线。在七具儿童股骨上以不同旋转程度测量了这个颈干骺端角；还对283张随机选取的髋关节X线片进行了研究。90%的患者该角度在25至40度之间变化，且与年龄无关。只要大转子基部和股骨颈内侧干骺端等标志点可确定（旋转0至30度），该角度在5度范围内是稳定的。
