The effect of screw fixation pattern in Sinus Tarsi plate on the biomechanical performance for the calcaneal fracture stabilization

Name: Prinda Santichatngam

Organization : Suranaree University of Technology. School of Biomedical Engineering Innovation

Name: Adisorn Chongmuenwai

Organization : Maharat Nakhon Ratchasima Hospital. Department of Orthopedic Surgery

Name: Supakit Rooppakhun

Organization : Suranaree University of Technology. Institute of Engineering

Email : supakit@sut.ac.th

keyword: Sinus Tarsi plate

LCSH: Biomechanics

; Calcaneus fracture

LCSH: Finite element method

; Screw pattern

Abstract: The Sinus Tarsi plate is the standard device for treating patients with calcaneus bone fracture, which is widely accepted to reduce complications with minimally invasive surgery techniques. However, there is still contentious regard to biomechanical performance being appropriate among the fixation device used to stabilize calcaneus fractures. This study aims to evaluate the biomechanical performance of the Sinus Tarsi plate for calcaneal fracture stabilization in various screw fixation patterns. A total of six design scenarios of threedimensional Finite Element (3D FE) models for fracture calcaneus stabilization based on Sinus Tarsi plate (5- holes, 6-holes, and 7-holes) was performed. The FE analysis was performed based on three-phase of walking stance conditions: heel strike, midstance, and push-off. The biomechanical performance included the equivalent (EQV) stress, and the total elastic strain at the fracture site was evaluated. The results showed that the maximum EQV stress displayed in the implant which higher than surrounding bone. In the push-off stage, the magnitude of EQV stress exhibited higher than those of midstance and heel-strike state, respectively. However, it did not exceed the yield strength of materials. Comparatively, the risk of implant failure during Sinus Tarsi plate stabilization was decreased when the screw fixation pattern at the anterior bone location was considered, especially in the 7-holes type. For the result of strain at the fracture site, the Sinus Tarsi plate with 6-holes and 7-holes revealed the calcaneus bone fracture stabilization exceeding 5-holes. The screw fixation pattern of Sinus Tarsi plate stabilization significantly affects the biomechanical performance of the calcaneal fracture.

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2023

Modified: 2023-11-01

Issued: 2023-10-25

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BibliograpyCitation : ใน มหาวิทยาลัยเทคโนโลยีราชมงคลศรีวิชัย คณะวิศวกรรมศาสตร์ สาขาวิชาวิศวกรรมเครื่องกล ร่วมกับ สมาคมวิศวกรเครื่องกลไทย. การประชุมวิชาการเครือข่ายวิศวกรรมเครื่องกลแห่งประเทศไทย ครั้งที่ 37 (ME-NETT 2023) (pp.429-436). สงขลา : มหาวิทยาลัยเทคโนโลยีราชมงคลศรีวิชัย

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