Sanchis-Alfonso Vicente, Torga-Spak Roger, Cortes Alex
Department of Orthopaedics Hospital Arnau de Vilanova, Valencia, Spain.
Knee. 2007 Dec;14(6):484-8. doi: 10.1016/j.knee.2007.07.006. Epub 2007 Sep 5.
A case of medial patellar instability following Insall's proximal realignment studied pre- and postoperatively by gait analysis is presented. Preoperative gait analysis showed an increased stance time period as well as an increased horizontal braking, heel contact and toe-off vertical peak forces on the affected limb. In our case, gait parameters tended to shift towards a normal value pattern after reconstruction of the lateral retinaculum. We speculate about the importance of the passive restraining structures in patellar stability, in contrast to the role of the muscle function advocated by some authors.
本文介绍了一例采用Insall近端重排术后出现内侧髌骨不稳定的病例，并通过步态分析对其术前和术后进行了研究。术前步态分析显示，患肢的站立期延长，同时水平制动、足跟触地和足趾离地时的垂直峰值力也增加。在我们的病例中，外侧支持带重建后，步态参数倾向于向正常数值模式转变。与一些作者所主张的肌肉功能的作用相反，我们推测了被动约束结构在髌骨稳定性中的重要性。
