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- Title
An automatic reduction method of 3D bone fragments based on a novel section contour point descriptor.
- Authors
Zhang, Song; Wang, Qifeng; Cao, Qiming; Li, Zhe; Yang, Liang; Liu, Bin
- Abstract
Comminuted fractures are orthopedic traumas with greater surgical difficulty. In clinical treatment, a great challenge is precise reduction of multiple broken bone fragments; Another great challenge is personalized and precise internal fixation after reduction. For these two issues, we designed an automated method framework for precise reduction and internal fixation of comminuted fractures. First, the Gaussian mixture model (GMM) is used to distinguish section points and noise points in a broken bone model; Second, ellipse fitting is carried out to achieve section points matching and a descriptor is proposed to describe the section features; Then, the Convolution Auto‐Encoder (CAE) and genetic algorithm are used to extract feature vectors; Finally, after broken bone models registration, internal fixed plate can be reconstructed. Three verification experiments for comminuted bone fracture show this method has high accuracy and good efficiency. It can provide support for minimally invasive treatment for comminuted fractures.
- Subjects
COMMINUTED fractures; INTERNAL fixation in fractures; MUSCULOSKELETAL system injuries; BONE fractures; GAUSSIAN mixture models
- Publication
International Journal for Numerical Methods in Biomedical Engineering, 2024, Vol 40, Issue 1, p1
- ISSN
2040-7939
- Publication type
Article
- DOI
10.1002/cnm.3786