Mäenpää H, Lehto M U
Medical School, University of Tampere, Finland.
Knee Surg Sports Traumatol Arthrosc. 1996;4(4):212-6. doi: 10.1007/BF01567965.
One hundred patients with the diagnosis of an acute patellar dislocation treated conservatively and 30 healthy control subjects were studied roentgenographically by lateral and tangential views. The aim of the study was to determine the distribution and incidence of predisposing factors in different study groups. Three study groups were formed as follows: 67 patients (group A) without late problems or operative treatment of redislocation; 33 patients (group B) who underwent a surgical realignment procedure for redislocations or late problems; and 30 healthy control subjects (group C). A statistically significant difference was observed between the patient groups (A, B) and control group (C) when the means, medians and distributions of patellar tendon length (LT), patellar length (LP), tendon to patella length ratio (LT/LP), tendon to patellar articular surface ratio (LT/LAS), sulcus angle (SA), lateral patellar displacement (LPD), lateral patellofemoral angle (LPA) and morphological classification of the patella (1-5, Jägerhut) were compared. In group A, LPD was also significantly greater than in group B. This study demonstrates a considerably high rate of predisposing factors associated with patellar dislocation.
对100例经保守治疗的急性髌骨脱位患者和30名健康对照者进行了X线侧位和切线位检查。本研究的目的是确定不同研究组中诱发因素的分布和发生率。研究组分为三组：67例（A组）无再脱位的晚期问题或手术治疗；33例（B组）因再脱位或晚期问题接受手术复位手术；30名健康对照者（C组）。比较髌腱长度（LT）、髌骨长度（LP）、腱髌长度比（LT/LP）、腱髌关节面比（LT/LAS）、沟角（SA）、髌骨外侧移位（LPD）、髌股外侧角（LPA）和髌骨形态分类（1-5，耶格胡特）的均值、中位数和分布时，患者组（A、B）与对照组（C）之间存在统计学显著差异。在A组中，LPD也显著高于B组。本研究表明与髌骨脱位相关的诱发因素发生率相当高。
