The Effect of Hinge Direction on Posterior Tibial Slope in Medial Open-wedge High Tibial Osteotomy: A Study Based on Three-dimensional Computed Tomography Modelling
- VernacularTitle:内侧撑开胫骨高位截骨骨性合页与胫骨平台后倾角改变的三维CT模型研究
- Author:
Hailong ZHANG
1
;
Hua FENG
;
Lei HONG
;
Xuesong WANG
;
Hui ZHANG
;
Jin ZHANG
;
Xin LIU
;
Zhe XUE
Author Information
1. 北京积水潭医院运动医学科 北京100035
- Keywords:
medial open-wedge high tibial osteotomy;
varus correction;
posterior tibial slope;
hinge axis
- From:Chinese Journal of Sports Medicine
2017;36(11):941-944
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore factors affecting posterior tibial slope changes after the medial openwedge high tibial osteotomy.Methods The open-wedge high tibial osteotomy was simulated and performed on the three-dimensional proximal tibia model reconstructed based on the computed tomography (CT) scanning,and the roles of hinge axis direction and correction of genu varum in postoperative posterior tibial slope changes were analyzed separately.Results Hinge axis pointing anterolaterally was significantly associated with the increase of postoperative posterior tibial slope with regard to the axis along the anterior-posterior direction.Meanwhile,the correction of the genu varum at a larger angle was also a crucial factor for the increase of postoperative posterior tibial slopes.Conclusion Postoperative posterior tibial slope changes after open-wedge high tibial osteotomy is closely associated with the hinge axis direction and correcting angle of the genu varum.
