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Effects of proximal fibular osteotomy on tibial plateau: a biomechanical analysis(PDF)

《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]

Issue:
2020年第5期
Page:
644-648
Research Field:
医学影像物理
Publishing date:

Info

Title:
Effects of proximal fibular osteotomy on tibial plateau: a biomechanical analysis
Author(s):
MO Yixiang1 2 DENG Yuping1 2 HUANG Wenhua1 2 3 OUYANG Hanbin4
1. National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China 2. Guangdong Province Medical 3D Printing Application Transformation Engineering Research Center, Guangzhou 510515, China 3. Department of Human Anatomy, School of Basic Medical Sciences, Guangdong Medical University, Zhanjiang 524023, China 4. Orthopedics Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524000, China
Keywords:
knee osteoarthritis varus deformity proximal fibular osteotomy tibial plateau biomechanics finite element analysis
PACS:
R318.01
DOI:
10.3969/j.issn.1005-202X.2020.05.022
Abstract:
Objective To investigate the biomechanical changes of the tibial plateau following proximal fibula osteotomy by three-dimensional finite element analysis for providing biomechanical evidences for the application of proximal fibular osteotomy in knee osteoarthritis with varus deformity. Methods Based on the CT data of a healthy volunteer, an individual knee joint finite element model was constructed by Mimics, Geomagic Studio2013 and Abaqus6.13 software. The stress of any node on different sections of the tibial plateau before and after proximal fibular osteotomy was calculated by setting the boundary conditions, loading material properties, applying loads and simulating proximal fibular osteotomy in the finite element model. Results After the surgical removal of the fibular support, the stress of the medial tibial plateau was inconsistent. The internal stress was reduced and the middle remained unchanged but the lateral was increased. However, the stress of the lateral tibial plateau was increased, and the internal stress was the maximum. There was a trend that the stress on the entire tibial plateau was concentrated in the middle. Conclusion Proximal fibular osteotomy is conductive to reducing the stress on the medial tibial plateau, thus alleviating the pain and inconvenience of patients with knee osteoarthritis. Due to the postoperative stress redistribution, the long-term efficacy and indications of the operation strategy still need to be further researched.

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Last Update: 2020-06-03