Research progress in the role "killer turn" effect in posterior cruciate ligament reconstruction
10.3760/cma.j.cn501098-20210901-00473
- VernacularTitle:后交叉韧带损伤重建术中“杀伤角”效应的研究进展
- Author:
Yuanjun TENG
1
;
Jie HU
;
Lijun DA
;
Shijian HE
;
Bin GENG
;
Yayi XIA
Author Information
1. 兰州大学第二医院骨科，兰州 730030
- Keywords:
Knee injuries;
Posterior cruciate ligament;
Ligament reconstruction
- From:
Chinese Journal of Trauma
2022;38(1):86-91
- CountryChina
- Language:Chinese
-
Abstract:
Transtibial tunnel reconstruction is one of the classical surgical techniques for posterior cruciate ligament (PCL) reconstruction. However, this surgical technique inevitably produces the "killer turn" effect. Specifically, during the transtibial tunnel reconstruction, there is a sharp tunnel edge at the exit of the tibial tunnel, and the graft has a large stress at this edge, which leads to the failure of transplantation due to the repeated friction between the graft and the tunnel edge. The "killer turn" effect may lead to the "residual laxity", thus resulting in postoperative knee instability, affecting the long-term efficacy of reconstructive surgery and reducing the postoperative satisfaction of patients. In recent years, many scholars have proposed a series of improved techniques for PCL reconstruction in dealing with the "killer turn" effect, including tibial inlay technique and improved transtibial tunnel technique. The authors review the formation mechanism of "killer turn" effect and methods to eliminate or reduce the effect, in order to provide a reference for improving the effect in PCL reconstruction.
