目的:系统总结髌骨脱位的流行病学是罕见的。这项研究旨在调查性别-,年龄-,类型-,造成伤害的事件-,骨挫伤发生率和最后一次损伤时间(TFLI)特异性特征,并详细介绍了髌骨脱位的流行病学特征。
方法:在这项描述性流行病学研究中,2017年8月至2022年6月期间,我们机构共有743例有髌骨外侧脱位史并有首次髌骨脱位(FPD)或复发性髌骨脱位(RPD)的患者符合纳入标准,并入选本研究.患者特征,包括类型,性别,年龄,导致髌骨脱位的事件,髌骨挫伤的发生率,回顾性地获得并描述了髌骨脱位的最后一次损伤(TFLI)的时间。检查了膝关节的磁共振成像扫描(MRI)以确保骨瘀伤。
结果:743例髌骨脱位患者需要手术重建内侧支持带,418(56.2%)有RPD,325(43.8%)有FPD。髌骨脱位患者中女性(65.0%)多于男性(35.0%)。在女性患者中,年龄<18岁的患者髌骨脱位的发生率较高(31.4%)。在男性患者中,年龄<18岁和19-28岁的患者髌骨脱位的发生率较高(16.8%)。在所有年龄组中,髌骨脱位的患病率在青少年人群和女性中很高,但没有统计学意义。最常见的髌骨脱位事件是运动事故(40.1%),其次是生命危险(23.2%)。左膝髌骨脱位的发生率略高于右膝髌骨脱位。RPD髌骨挫伤的发生率(63.2%)显著低于FPD(82.2%)(p<0.05)。骨挫伤髌骨脱位患者的末次损伤时间(TFLI)短于无髌骨挫伤的患者(p<0.05)。
结论:RPD的骨挫伤发生率低于FPD,与没有骨瘀伤的患者相比,髌骨瘀伤患者从最后一次受伤开始的时间可能更短。
OBJECTIVE: Systematic summary of the epidemiology of patellar dislocation is rare. This study aims to investigate sex-, age-, type-, injury causing events-, incidence of bone bruise and time from last injury (TFLI)-specific characteristics, and detail the epidemiological characteristics of patellar dislocation.
METHODS: In this descriptive epidemiological study, a total of 743 patients who have a history of lateral patellar dislocation with either first-time patellar dislocation (FPD) or recurrent patellar dislocation (RPD) between August 2017 and June 2022 at our institution met the inclusion criteria and were selected in this study. Patient characteristics including the type, gender, age, events leading to patellar dislocation, incidence of patellar bone bruise, and the time from last injury (TFLI) of patellar dislocation were retrospectively obtained and described. Magnetic resonance imaging scans (MRI) of the knee were reviewed for insuring bone bruise.
RESULTS: Among the 743 patients with patellar dislocation who required surgical reconstruction of the medial retinaculum, 418 (56.2%) had RPD and 325 (43.8%) had FPD. There were more females (65.0%) than males (35.0%) in patellar dislocation patients. Among the female patients, those aged <18 years had higher incidence (31.4%) of patellar dislocation. Among the male patients, those aged <18 and 19-28 years had higher incidence (16.8%) of patellar dislocation. Of all age groups, the prevalence rate of patellar dislocation was high in juvenile population and females, but with no statistical significance. The most common patellar dislocation-causing event was sport accidents (40.1%), followed by life accidents (23.2%). The incidence of left-knee patellar dislocation was slightly higher than that of right-knee patellar dislocation. The incidence of patellar bone bruise of RPD (63.2%) was significantly lower (p < 0.05) than that of FPD (82.2%). Patellar dislocation patients with bone bruise had shorter time from last injury (TFLI) than those without patellar bone bruise (p < 0.05).
CONCLUSIONS: The incidence of bone bruise of RPD was lower than that of FPD, and patients with patellar bone bruise may have a shorter time from last injury than those without bone bruise.