Finite element analysis of simulated treatment of Sanders type Ⅲcalcaneal fractures with sustentacular screw placement of sustentaculum tali
10.16098/j.issn.0529-1356.2025.03.009
- VernacularTitle:载距突置钉模拟治疗Sanders Ⅲ型跟骨骨折的有限元分析
- Author:
Guang-Sheng TANG
1
;
Qi WANG
;
Yao XU
;
Bing WANG
;
Jian-Ning SUN
;
De-Guang WANG
Author Information
1. 南京医科大学康达学院基础医学部人体解剖学教研室,江苏 连云港 222000;徐州医科大学基础医学院人体解剖学教研室,江苏 徐州 221004
- Keywords:
Sustentacular screw placement of sustentaculum tali;
Sanders type Ⅲ calcaneal fracture;
Three-dimensional reconstruction;
Finite element analysis;
Simulated treatment;
Human
- From:
Acta Anatomica Sinica
2025;56(3):315-322
- CountryChina
- Language:Chinese
-
Abstract:
Objective To construct a finite element analysis model for the treatment of calcaneal fracture for Sanders Ⅲ type calcaneal by using simulated sustentaculum tali sustentacular screw placement,and to explore the effectiveness of the treatment of Sanders typeⅢcalcaneal fracture.Methods The finite element analysis method was used to study the effectiveness of the treatment of Sanders Ⅲ calcaneal fracture.Three calcaneal specimens of a healthy adult were taken for Micro-CT scanning to obtain the CT sections data,then Mimics 21.0 and Geomagic Wrap 2017 software were used to reconstruct the three-dimensional model of normal calcaneal bone,and SolidWorks 2017 software was used to map the internal fixation and fracture model according to the clinical fracture cases,and simulated surgery was performed.The data obtained were imported into ANSYS 17.0 finite element analysis software for material assignment and mesh division to establish a three-dimensional finite element model.The load and boundary constraints were applied to each model to perform finite element analysis and calculation,and then the stress of the finite element model and the maximum displacement of the fracture end were extracted.Results The maximum stress of the overall structure of each model was concentrated on internal fixation,in which the maximum stress of sustentaculum tali fracture and the maximum stress of screws in all fracture models are located on the sustentaculum tali sustentacular screw.The displacement of fracture end in each finite element model was less than 0.15 mm,and no internal fixation failure occurred.Conclusion It is effective to simulate the treatment of calcaneal fracture of Sanders type Ⅲ by using of sustentaculum tali sustentacular screw.
