正常髌股关节在体运动学研究回顾

Systematic Review on Studies of in vivo Patellofemoral Joint Kinematics

髌骨轨迹不良被认为是引起髌股疼痛综合征的主要病理生理机制之一。本文回顾迄今已发表的正常髌股关节运动分析结果,介绍正常髌股关节在不同功能活动下的6自由度运动动态特征。髌骨内外移位、翻转、前后移位以及屈曲在不同的功能运动中都存在较为统一的运动模式。然而,不同测量方法限制了研究之间的深入比较。今后广泛运用动态磁共振成像(magnetic resonance imaging,MRI)或/和双平面正交荧光透视成像系统(dual fluoroscopic imaging system,DFIS),规范坐标系的建立或骨性形态参数的定义与使用,并增加实验的样本量,将有助于明确在体髌股关节6自由度运动的特征,完善对髌股关节动态功能的临床评价依据。

Patellar tracking disorder is recognized as one of the major causes of the pathophysiological mechanism in patellofemoral pain syndrome.This paper reviewed the results of patellofemoral kinematic analyses and summarized the motion characteristics of six-degrees-of-freedom(6 DOF)of patellofemoral joints under different functional activities.Patella has a relatively unified trend in lateral,anterior and posterior translation,tilt and flexion.However,different measurements limit an in-depth comparison between studies.In the future,widely applying magnetic resonance(MRI)or/and dual fluoroscopic imaging system(DFIS),standardizing the establishment of coordinate system or definition and use of morphological parameters,and increasing sample size will contribute to explicating the 6 DOF motion characteristics of patellofemroal joints in vivo and improve the clinical evaluation on kinematic function of patellofemroal joints.