Study of Anatomical Landmark Sampling Error Effect on Motion Measurement Reproducibility for Orthopaedic Physical Examination Assisting System
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- OKAMOTO Jun
- Institute of Advanced Biomedical Engineering & Science, Tokyo Women's Medical University
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- KUMASAKA Yu
- Graduate School of Science & Engineering, Waseda University
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- KAWAMURA Kazuya
- Faculty of Science & Engineering, Waseda University
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- MATSUMOTO Tomoyuki
- Department of Orthopaedic Surgery, Kobe graduate school of medicine
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- KUBO Seiji
- Department of Orthopaedic Surgery, Kobe graduate school of medicine
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- MURATSU Hirotsugu
- Department of Orthopaedic Surgery, Steel Memorial Hirohata Hospital
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- KUROSAKA Masahiro
- Department of Orthopaedic Surgery, Kobe graduate school of medicine
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- FUJIE Masakatsu G.
- Faculty of Science & Engineering, Waseda University
抄録
We have been developing the Orthopaedic physical examination assisting system using magnetic position tracker to quantitate knee laxity diagnosis. In this study, to investigate the influence of anatomical landmark sampling error for bone coordinate registration, reproducibility verification simulation was done. Firstly, the motion data of imitation bones was acquired using the system and set as a reference data. To get the error motion data, virtual error vectors were added on the reference sampling points and new motion data was recomputed. Evaluation was executed by comparison with the reference data and recomputed data. The evaluation results lead improvement methods of measurement reproducibility as follows. 1. It is important to point the landmarks proximal to the knee carefully because the contribution of the motion error is higher than the distal landmarks. 2. To reduce the registration error, thigh and shank receivers should be set close to the knee as possible. 3. If the allowance area of the sampling error is in 2.0 mm diameter circle, Diagnosis error using IKDC Knee examination form is approximately 20 %.
収録刊行物
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- Journal of Advanced Mechanical Design, Systems, and Manufacturing
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Journal of Advanced Mechanical Design, Systems, and Manufacturing 7 (2), 125-139, 2013
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390282680248838272
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- NII論文ID
- 130003368538
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- BIBCODE
- 2013JAMDS...7..125O
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- ISSN
- 18813054
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可