Gotoh E, Tsuji M, Matsuno T, Ando M
Department of Orthopaedic Surgery, Asahikawa Medical College, Nishikagura Asahikawa City, Japan.
Clin Orthop Relat Res. 2000 Sep(378):174-82. doi: 10.1097/00003086-200009000-00027.
A radiologic study was conducted on 56 patients with developmental dislocation of the hip (63 hips). Fifty hips in which neither acetabular nor femoral osteotomy was performed were classified as satisfactory (Severin Groups I and II) or unsatisfactory (Severin Groups III and IV) based on radiographs when growth was completed. The sequential changes in the center edge angle and the acetabular index were compared when the patients were ages of 5, 10, and 15 years. There was a significant relationship between the center edge angle and the acetabular index when the patients were 5 years of age and at final outcome. Most (85.7%) patients with a center edge angle less than 8 degrees and an acetabular index greater than 26 degrees at 5 years of age eventually were classified as Severin Groups III and IV at skeletal maturity. These findings suggest that radiologic results at the time when growth is completed can be predicted based on the center edge angle and the acetabular index in radiologic measurements at 5 years of age. The authors recommend that if at 5 years of age the center edge angle is less than 8 degrees and the acetabular index is greater than 26 degrees, consideration be given to an osteotomy to bring these values to a more normal range to improve final outcome.
对56例发育性髋关节脱位患者（63髋）进行了影像学研究。根据生长完成时的X线片，将50例未行髋臼或股骨截骨术的髋关节分为满意（Severin I组和II组）或不满意（Severin III组和IV组）。比较了患者5岁、10岁和15岁时中心边缘角和髋臼指数的连续变化。患者5岁时以及最终结果时，中心边缘角和髋臼指数之间存在显著相关性。5岁时中心边缘角小于8度且髋臼指数大于26度的大多数（85.7%）患者在骨骼成熟时最终被归类为Severin III组和IV组。这些发现表明，根据5岁时影像学测量的中心边缘角和髋臼指数，可以预测生长完成时的影像学结果。作者建议，如果5岁时中心边缘角小于8度且髋臼指数大于26度，应考虑进行截骨术，使这些值达到更正常的范围，以改善最终结果。
