Elastic fixation with Tightrope system for inferior tibiofibular syndesmosis diastasis: a cadaveric study
10.3760/cma.j.cn115530-20191118-00416
- VernacularTitle:Tightrope系统捆绑弹性固定下胫腓分离新技术的初步研究
- Author:
Jiaming SAI
1
;
Liangxiao ZHENG
;
Liangning YU
;
Jinwei LIU
;
Zhaohui ZHU
;
Zengfang ZHANG
Author Information
1. 山东大学齐鲁医院（青岛）手足外科 266035
- From:
Chinese Journal of Orthopaedic Trauma
2020;22(10):901-907
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To study the performance of the elastic fixation with our self-designed Tightrope system for inferior tibiofibular syndesmosis (ITFS) diastasis.Methods:In this self-control study, 6 specimens of normal cadaveric ankle were used as a normal ITFS group while the models of the ITFS diastasis were constructed as a group of ITFS diastasis. On the models of ITFS diastasis, elastic fixation with transverse Tightrope system (transverse fixation group) or binding Tightrope system (binding fixation group) was applied. The reduction and stability of ITFS were compared between transverse fixation and binding fixation for ITFS diastasis in terms of ITFS parameters on X-Ray[tibiofibular clear space (TFCS) and medial clear space (MCS)] and on CT[inferior tibiofibular anterior clear space (ITFACS), inferior tibiofibular middle clear space (ITFMCS), inferior tibiofibular posterior clear space (ITFPCS), anterior inferior tibiofibular interval (AITFI) and fibular rotation (θfib)].Results:The transverse fixation with Tightrope system for ITFS diastasis on the models led to iatrogenic injury to the fibular and the ITFS interosseous ligaments and to the perforating peroneal artery, and malreduction as well while the binding fixation with Tightrope system caused no injury to the anterior or the posterior ITFS ligament or the superior peroneal retinaculum but fine reduction as well. In comparisons of TFCS, ankle MCS, ITFACS, ITFMCS and AITFI between the 4 groups, normal ITFS group
