Mechanics Analysis on Novel Micro-Movement Elastic Implant of Distal Tibiofibular Syndesmosis in Dorsiflexion Position
10.16156/j.1004-7220.2022.02.10
- VernacularTitle:下胫腓联合新型微动弹性植入物背伸位力学分析
- Author:
Cheng LIANG
1
,
2
;
Chunyan LI
3
;
Hanwen ZHANG
4
;
Jianqiang XUE
4
;
Ke DUAN
2
,
5
;
Guan WANG
4
;
Xiaobo LU
2
,
5
Author Information
1. Department of Bone and Joint Surgery, Clinical Medicine Research Center, the Affiliated Hospital of Southwest Medical University
2. Sichuan Provincial Laboratory of Orthopaedic Engineering
3. Department of General Pediatrics, Luzhou People’s Hospital
4. Department of Bone and Joint Surgery, the Affiliated Hospital of Southwest Medical University
5. Department of Bone and Joint Surgery, the Affiliated Hospital of Southwest Medical University
- Publication Type:Journal Article
- Keywords:
distal tibiofibular syndesmosis;
dorsiflexion position;
elastic implant
- From:
Journal of Medical Biomechanics
2022;37(2):E256-E261
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study mechanical properties of the novel micro-movement elastic implant of distal tibiofibular syndesmosis in dorsiflexion position.Methods A combination of simulation and experiment was used. The normal ankle dorsiflexion model, the bone nail repaired model and the micro-movement elastic implant repaired model were established by using Mimics and CT data. Besides, ANSYS Workbench was used for finite element analysis. Mechanical experiments on lower limb specimens were conducted on Instron E10000 mechanical test instrument, and five sets of experimental data were measured and analyzed.Results Mechanical properties of the micro-movement elastic implant repaired model were closer to those of the normal ankle dorsiflexion model, but stress of the micro-movement elastic implant repaired mode was greater than that of the bone nail repaired model. The results of two-sample heteroscedasticity t test indicated that there was no significant difference in resistance torque between the micro-movement elastic implant repaired model and the normal ankle dorsiflexion model.Conclusions For dorsiflexion position, repairing mechanical properties of the novel micro-movement elastic implant are much better than those of the bone nail, and there is still room for optimizing the micro-movement elastic implant.
