Study of Anatomical Landmark Sampling Error Effect on Motion Measurement Reproducibility for Orthopaedic Physical Examination Assisting System
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 simulati...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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The Japan Society of Mechanical Engineers
2013-03-01
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| Series: | Journal of Advanced Mechanical Design, Systems, and Manufacturing |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/jamdsm/7/2/7_125/_pdf/-char/en |
| _version_ | 1811291832079876096 |
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| author | Jun OKAMOTO Yu KUMASAKA Kazuya KAWAMURA Tomoyuki MATSUMOTO Seiji KUBO Hirotsugu MURATSU Masahiro KUROSAKA Masakatsu G. FUJIE |
| author_facet | Jun OKAMOTO Yu KUMASAKA Kazuya KAWAMURA Tomoyuki MATSUMOTO Seiji KUBO Hirotsugu MURATSU Masahiro KUROSAKA Masakatsu G. FUJIE |
| author_sort | Jun OKAMOTO |
| collection | DOAJ |
| description | 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 %. |
| first_indexed | 2024-04-13T04:35:18Z |
| format | Article |
| id | doaj.art-a53a31ea2bdf4bdebc5a0613e8749715 |
| institution | Directory Open Access Journal |
| issn | 1881-3054 |
| language | English |
| last_indexed | 2024-04-13T04:35:18Z |
| publishDate | 2013-03-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Journal of Advanced Mechanical Design, Systems, and Manufacturing |
| spelling | doaj.art-a53a31ea2bdf4bdebc5a0613e87497152022-12-22T03:02:11ZengThe Japan Society of Mechanical EngineersJournal of Advanced Mechanical Design, Systems, and Manufacturing1881-30542013-03-017212513910.1299/jamdsm.7.125jamdsmStudy of Anatomical Landmark Sampling Error Effect on Motion Measurement Reproducibility for Orthopaedic Physical Examination Assisting SystemJun OKAMOTO0Yu KUMASAKA1Kazuya KAWAMURA2Tomoyuki MATSUMOTO3Seiji KUBO4Hirotsugu MURATSU5Masahiro KUROSAKA6Masakatsu G. FUJIE7Institute of Advanced Biomedical Engineering & Science, Tokyo Women's Medical UniversityGraduate School of Science & Engineering, Waseda UniversityFaculty of Science & Engineering, Waseda UniversityDepartment of Orthopaedic Surgery, Kobe graduate school of medicineDepartment of Orthopaedic Surgery, Kobe graduate school of medicineDepartment of Orthopaedic Surgery, Steel Memorial Hirohata HospitalDepartment of Orthopaedic Surgery, Kobe graduate school of medicineFaculty of Science & Engineering, Waseda UniversityWe 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 %.https://www.jstage.jst.go.jp/article/jamdsm/7/2/7_125/_pdf/-char/enmedical and welfare assistancebiomechanicsbio-motionorthopaedic physical examinationknee laxity diagnosismagnetic trackermedical quantitation |
| spellingShingle | Jun OKAMOTO Yu KUMASAKA Kazuya KAWAMURA Tomoyuki MATSUMOTO Seiji KUBO Hirotsugu MURATSU Masahiro KUROSAKA Masakatsu G. FUJIE Study of Anatomical Landmark Sampling Error Effect on Motion Measurement Reproducibility for Orthopaedic Physical Examination Assisting System Journal of Advanced Mechanical Design, Systems, and Manufacturing medical and welfare assistance biomechanics bio-motion orthopaedic physical examination knee laxity diagnosis magnetic tracker medical quantitation |
| title | Study of Anatomical Landmark Sampling Error Effect on Motion Measurement Reproducibility for Orthopaedic Physical Examination Assisting System |
| title_full | Study of Anatomical Landmark Sampling Error Effect on Motion Measurement Reproducibility for Orthopaedic Physical Examination Assisting System |
| title_fullStr | Study of Anatomical Landmark Sampling Error Effect on Motion Measurement Reproducibility for Orthopaedic Physical Examination Assisting System |
| title_full_unstemmed | Study of Anatomical Landmark Sampling Error Effect on Motion Measurement Reproducibility for Orthopaedic Physical Examination Assisting System |
| title_short | Study of Anatomical Landmark Sampling Error Effect on Motion Measurement Reproducibility for Orthopaedic Physical Examination Assisting System |
| title_sort | study of anatomical landmark sampling error effect on motion measurement reproducibility for orthopaedic physical examination assisting system |
| topic | medical and welfare assistance biomechanics bio-motion orthopaedic physical examination knee laxity diagnosis magnetic tracker medical quantitation |
| url | https://www.jstage.jst.go.jp/article/jamdsm/7/2/7_125/_pdf/-char/en |
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