Nomura Eiki, Inoue Motoyasu, Kobayashi Shigeryu
Department of Orthopaedic Surgery, Kawasaki Municipal Hospital, Kawasaki, Japan.
Arthroscopy. 2006 Aug;22(8):861-5. doi: 10.1016/j.arthro.2006.04.090.
The purpose of this study was to assess the relation between generalized joint laxity and patellar hypermobility in unilateral recurrent patellar dislocators.
Case series.
A total of 82 patients (23 male and 59 female patients) with unilateral recurrent patellar dislocation were studied compared with an age- and sex-matched control group. The modified Carter and Wilkinson criteria for generalized joint laxity and lateral patellar hypermobility test were examined.
Generalized joint laxity (score of 4 or 5) was present in 20 patients (24%) with recurrent patellar dislocation in 8 subjects (10%) of the control group. The mean total score was 2.5 (SD, 1.4) in the recurrent patellar dislocators and 1.7 (SD, 1.3) in the control group. The incidence of generalized joint laxity (P = .013) and the mean total score (P = .00004) were statistically significant between the two groups. A hypermobile patella was present in 42 patients (51%) and in 5 subjects (6%) of the control group. There was a large statistically significant difference between the two groups (P < .00001).
Although a hypermobile patella and generalized joint laxity were significant between the recurrent patellar dislocators and the control group, a hypermobile patella was more significant than generalized joint laxity as the predisposing factors of patellar dislocation.
Level IV, prognostic case series.
本研究旨在评估单侧复发性髌骨脱位患者的全身关节松弛与髌骨活动过度之间的关系。
病例系列研究。
共研究了82例单侧复发性髌骨脱位患者（23例男性和59例女性），并与年龄和性别匹配的对照组进行比较。检查了改良的Carter和Wilkinson全身关节松弛标准以及髌骨外侧活动过度试验。
82例复发性髌骨脱位患者中有20例（24%）存在全身关节松弛（评分为4或5），对照组8例受试者（10%）存在全身关节松弛。复发性髌骨脱位患者的平均总分是2.5（标准差，1.4），对照组为1.7（标准差，1.3）。两组之间全身关节松弛的发生率（P = 0.013）和平均总分（P = 0.00004）具有统计学意义。42例患者（51%）存在髌骨活动过度，对照组5例受试者（6%）存在髌骨活动过度。两组之间存在统计学上的显著差异（P < 0.00001）。
虽然复发性髌骨脱位患者与对照组之间髌骨活动过度和全身关节松弛均具有显著性，但作为髌骨脱位的易感因素，髌骨活动过度比全身关节松弛更显著。
IV级，预后病例系列。
