Prediction of Deformity Correction by Pedicle Screw Instrumentation in Thoracolumbar Scoliosis Surgery : Computer Simulation Study(<Special Issue>Bioengineering)
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概要
- 論文の詳細を見る
In segmental pedicle screw instrumentation, the relationship between the combinations of pedicle screw placements and the degree of deformity correction was investigated with a three-dimensional rigid body and spring model. The virtual thoracolumbar scoliosis (Cobb's angle of 47 deg.) was corrected using six different combinations of pedicle-screw placements. As a result, better correction in the axial rotation was obtained with the pedicle screws placed at or close to the apical vertebra than with the screws placed close to the end vertebrae, while the correction in the frontal plane was better with the screws close to the end vertebrae than with those close to the apical vertebra. Additionally, two screws placed in the convex side above and below the apical vertebra provided better correction than two screws placed in the concave side. Effective deformity corrections of scoliosis were obtained with the proper combinations of pedicle screw placements.
- 一般社団法人日本機械学会の論文
- 2005-12-15
著者
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MATSUMOTO Morio
Department of Hematology, Nishigunma National Hospital
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CHIBA Kazuhiro
Department of Orthopaedic Surgery, Keio University School of Medicine
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TOYAMA Yoshiaki
Department of Orthopaedic Surgery, School of Medicine, Keio University
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Chiba Kazuhiro
Department Of Orthopaedic Surgery Keio University
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Tokuhashi Yasuaki
Committee For The Survey Of Spine And Spinal Cord Surgery Japanese Spine Research Society
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YAMAZAKI Nobutoshi
Department of Biomedical Engineering, Faculty of Science & Technology, Keio University
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Yamazaki Nobutoshi
Department Of Biomedical Engineering Faculty Of Science & Technology Keio University
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KIRIYAMA Yoshimori
Department of Musculoskeletal Reconstruction and Regeneration Surgery, School of Medicine, Keio Univ
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NAGURA Takeo
Department of Orthopaedics Surgery, School of Medicine, Keio University, School of Medicine, Keio Un
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Nagura Takeo
Department Of Orthopaedics Surgery School Of Medicine Keio University School Of Medicine Keio Univer
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YAMAZAKI Takashi
Musashino Red Cross Hospital
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Matsumoto Morio
Department Of Hematology National Hospital Organization Nishigunma National Hospital
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Toyama Yoshiaki
Keio Univ. Tokyo Jpn
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Toyama Yoshiaki
Department Of Orthopaedic Surgery Keio University
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Toyama Yoshiaki
Department Of Orthopaedic Surgery School Of Medicine Keio University
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Kiriyama Yoshimori
Department Of Musculoskeletal Reconstruction And Regeneration Surgery School Of Medicine Keio Univer
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Toyama Yoshiaki
Department Of Orthopedic Surgery School Of Medicine Keio University
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Matsumoto Morio
Department Of Orthopedic Surgery School Of Medicine Keio University
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Chiba Kazuhiro
Department Of Agriculture Applied Biological Science Tokyo University Of Agriculture And Technology
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Yamazaki Nobutoshi
Department of Mechanical Engineering, Faculty of Science and Technology, Keio University
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