Mayo Clinic, Rochester, Minnesota, USA.
Physiother Theory Pract. 2010 Apr 22;26(3):184-94. doi: 10.3109/09593980902750857.
Abstract This study examined validity indices of the Trendelenburg test as a measure of hip abductor muscle performance (adduction of pelvis-on-femur [P-O-F]) when identifying subjects with and without hip joint osteoarthritis (OA). Muscle performance of the hip abductor muscles was obtained in standing by using the P-O-F position measured with a goniometer and in supine using a handheld dynamometer (HHD) and a manual muscle test (MMT). We studied 20 healthy adults (10 men and 10 women) and 20 adults (10 men and 10 women) with radiographically documented hip joint OA. Indices including sensitivity, specificity, and positive likelihood ratios examined values obtained from the P-O-F position and the MMT when used to identify subjects with and without hip joint OA. Sensitivity of the P-O-F position for identifying subjects with hip joint OA was 0.55, and specificity was 0.70, yielding a positive likelihood ratio of 1.83. Sensitivity of normalized hip abductor MMT strength for identifying subjects with hip joint OA was 0.35 and specificity was 0.90, yielding a positive likelihood ratio of 3.5. Based on validity information from the present study, the Trendelenburg test (P-O-F angle) is not useful in identifying subjects in the early stages of hip joint OA.
摘要 本研究旨在探讨在鉴别髋关节骨关节炎（OA）患者和非患者时，特伦德伦伯格试验（Trendelenburg test）作为髋关节外展肌（髋关节股骨上的骨盆内收 [P-O-F]）性能测量的有效性指标。采用量角器测量 P-O-F 位置和手持测力计（HHD）及手动肌肉测试（MMT），在站立位和仰卧位分别获取髋关节外展肌的肌肉性能。我们研究了 20 名健康成年人（10 男 10 女）和 20 名影像学确诊为髋关节 OA 的成年人（10 男 10 女）。我们通过 P-O-F 位置和 MMT 来评估敏感度、特异度和阳性似然比，以鉴别髋关节 OA 患者和非患者。P-O-F 位置鉴别髋关节 OA 患者的敏感度为 0.55，特异度为 0.70，阳性似然比为 1.83。校正后的髋关节外展肌 MMT 力量鉴别髋关节 OA 患者的敏感度为 0.35，特异度为 0.90，阳性似然比为 3.5。基于本研究的有效性信息，特伦德伦伯格试验（P-O-F 角度）在鉴别髋关节 OA 的早期患者方面没有用处。
