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Validation of a computational knee joint model using an alignment method for the knee laxity test and computed tomography

Authors
 Kang, Kyoung-Tak  ;  Kim, Sung-Hwan  ;  Son, Juhyun  ;  Lee, Young Han  ;  Koh, Yong-Gon 
Citation
 BIO-MEDICAL MATERIALS AND ENGINEERING, Vol.28(4) : 417-429, 2017 
Journal Title
 BIO-MEDICAL MATERIALS AND ENGINEERING 
ISSN
 0959-2989 
Issue Date
2017
MeSH
Biomechanical Phenomena ; Humans ; Joint Instability* ; Knee ; Knee Joint/physiology* ; Models, Anatomic* ; Range of Motion, Articular ; Rotation ; Tomography, X-Ray Computed
Keywords
3D imaging ; computed tomography ; computer simulation ; knee joint ; laxity test
Abstract
BACKGROUND: Computational models have been identified as efficient techniques in the clinical decision-making process. However, computational model was validated using published data in most previous studies, and the kinematic validation of such models still remains a challenge. Recently, studies using medical imaging have provided a more accurate visualization of knee joint kinematics. OBJECTIVE: The purpose of the present study was to perform kinematic validation for the subject-specific computational knee joint model by comparison with subject's medical imaging under identical laxity condition. METHODS: The laxity test was applied to the anterior-posterior drawer under 90° flexion and the varus-valgus under 20° flexion with a series of stress radiographs, a Telos device, and computed tomography. The loading condition in the computational subject-specific knee joint model was identical to the laxity test condition in the medical image. RESULTS: Our computational model showed knee laxity kinematic trends that were consistent with the computed tomography images, except for negligible differences because of the indirect application of the subject's in vivo material properties. CONCLUSIONS: Medical imaging based on computed tomography with the laxity test allowed us to measure not only the precise translation but also the rotation of the knee joint. This methodology will be beneficial in the validation of laxity tests for subject- or patient-specific computational models.
Full Text
https://content.iospress.com/articles/bio-medical-materials-and-engineering/bme1686
DOI
10.3233/BME-171686
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Orthopedic Surgery (정형외과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Sung Hwan(김성환) ORCID logo https://orcid.org/0000-0001-5743-6241
Lee, Young Han(이영한) ORCID logo https://orcid.org/0000-0002-5602-391X
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/160769
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