A 3‐DOF electromotor‐driven external fixator for foot and ankle deformity correction based on X‐ray digital measurement

Author:

Li Jianfeng1,Wang Shuang1,Zuo Shiping1,Dong Mingjie1ORCID,Jiao Ran1

Affiliation:

1. Beijing Key Laboratory of Advanced Manufacturing Technology Faculty of Materials and Manufacturing Beijing University of Technology Beijing China

Abstract

AbstractBackgroundThe use of external fixators to treat foot and ankle deformities remains a challenge in orthopedic surgery due to their diversity. We hope to improve the automation and accuracy of the correction process.MethodsA three‐degree‐of‐freedom (3‐DOF) electromotor‐driven external fixator for uniplanar foot and ankle deformities was proposed. Computer‐assisted correction software was developed to help surgeons use digital technology to measure the required parameters from patients' X‐ray radiographs. The correction trajectory and the prescriptions were generated in the software based on the proposed correction strategy.ResultsTwo clinical cases were simulated to verify the correction ability of the developed external fixator. The results showed that the angular and displacement deformities were well corrected.ConclusionsThe developed external fixator can accurately and automatically correct foot and ankle deformities with the help of computer‐assisted correction software, which significantly reduces the burden on surgeons and patients.

Funder

National Natural Science Foundation of China

Publisher

Wiley

Subject

Computer Science Applications,Biophysics,Surgery

Reference49 articles.

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2. Assessment of percutaneous V osteotomy of the calcaneus with Ilizarov application for correction of complex foot deformities;Hani EM;Acta Orthop Belg,2004

3. Ilizarov External Fixation in the Correction of Severe Pediatric Foot and Ankle Deformities

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