Evidence map›Paper›PMID 41262445›Full record

ArticleFrontiers in medicine2025

Biomechanical comparison of five fixation methods in minimally invasive hallux valgus osteotomy: a three-dimensional finite element analysis.

Xiaomei Li, Lan Zhang, Jiandong Wang, Yongjun Wang, Guangming Dai, Wei Jiang, Haoyan Zheng, Bo Feng, Weiqing Tian

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Article in Frontiers in medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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1citing papers in PubMed
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1 citing paper in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Xiaomei LiDepartment of Orthopedics, The Third Affiliated Hospital of Inner Mongolia Medical University, Baotou, China.
Lan ZhangDepartment of Orthopedics, The Third Affiliated Hospital of Inner Mongolia Medical University, Baotou, China.
Jiandong WangDepartment of Orthopedics, The Third Affiliated Hospital of Inner Mongolia Medical University, Baotou, China.
Yongjun WangDepartment of Orthopedics, The Third Affiliated Hospital of Inner Mongolia Medical University, Baotou, China.
Guangming DaiDepartment of Orthopedics, The Third Affiliated Hospital of Inner Mongolia Medical University, Baotou, China.
Wei JiangDepartment of Orthopedics, The Third Affiliated Hospital of Inner Mongolia Medical University, Baotou, China.
Haoyan ZhengDepartment of Orthopedics, The Third Affiliated Hospital of Inner Mongolia Medical University, Baotou, China.
Bo FengDepartment of Orthopedics, The Third Affiliated Hospital of Inner Mongolia Medical University, Baotou, China.
Weiqing TianDepartment of Orthopedics, The Third Affiliated Hospital of Inner Mongolia Medical University, Baotou, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: Although minimally invasive osteotomy for hallux valgus employs a variety of internal fixation methods, systematic biomechanical evidence evaluating the stability and strength of different fixation configurations is lacking. This study aimed to quantitatively compare the biomechanical properties of five internal fixation techniques using three-dimensional finite element analysis. Methods: Based on CT data of the foot of an adult female patient with moderate hallux valgus (HVA 27.6°, IMA 12.4°), a finite element model of the post-osteotomy state was constructed. The following fixation schemes were simulated: Group A: two 3.5 mm beveled metal screws; Group B: one 3.5 mm beveled metal screw; Group C: two 2.0 mm Kirschner wires; Group D: one 3.5 mm beveled metal screw and one 2.0 mm Kirschner wire; Group E: three 2.0 mm Kirschner wires. Comparison parameters included the maximum equivalent (Von-Mises) stress between the osteotomy fragment and the internal fixation, the maximum displacement of the osteotomy fragments in the X, Y, and Z axes, and the overall displacement of the internal fixation. Results: Under the same load: 1. Maximum stress of the osteotomy fragment: Group A (5.6824 MPa) < Group B < Group D < Group C < Group E (33.33 MPa); 2. Maximum stress of internal fixation: Group A (16.159 MPa) < Group D < Group B < Group C < Group E (238.68 MPa, with significant stress concentration); 3. Maximum displacement of the osteotomy fragment (X/Y/Z): Group E (4.2035/2.8512/7.1309 mm) < Group D < Group A < Group C < Group B (4.3251/3.2353/7.4102 mm); 4. Overall displacement of internal fixation: Group B (7.5284 mm) < Group D < Group C < Group A < Group E (7.9256 mm). Conclusion: 1. Two 3.5 mm beveled screws (Group A) are the optimal configuration, combining low stress distribution (lowest stress on the osteotomy fragment and internal fixation) with high stability (moderate displacement); 2. Combined fixation (Group D) is a secondary option, but bone quality assessment is required (Kirschner wire fixation carries the risk of loosening); 3. Three Kirschner wires (Group E) are only suitable for low-load cases due to the risk of high stress concentration (238.68 MPa).

Indexed as

biomechanicshallux valgusinternal fixationminimally invasive surgerythree-dimensional finite element method

Identifiers

PMID41262445
PMCPMC12623210

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.