Presentation 1998/5/29
Accuracy Verification of Intraoperative Monitoring of Knee-Motion after Total Knee Arthroplasty using a 6-DOF Measurement System, KKN/1B
K. Nishino, T. Hayashi, Y. Kondo, Y. Suzuki, Y. Koga, G. Omori,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) This study aims at validating the accuracy of an intraoperative knee-movement monitoring during total knee arthroplasty. This system can visualize the intersurface proximity of knee-joint surfaces, changing by knee movement, combining 6-DOF kinematic data obtained from a photostereometric system, KKN/1B, and a geometric model of the articular surfaces. In order to evaluate the accuracy of data regarding the positional relationship of the opposing articular surfaces and their proximity, several experiments were carried out by employing a combination of a sphere and a plane as measured objects, instead of the components, so that referential data can easily be obtained. Consequently, overall accuracy of the positional relationship was verified to lie within 0.52 [mm] in terms of positional error of the spheric center. The intersurface proximity, on the other hand, was evaluated by using the closest distance from points of the plane to the sphere in the contact and near-contact region, where the distance was ≤1.0 [mm]. Overall error of this distance obtained was verified to lie within 0.24 [mm].
Keyword(in Japanese) (See Japanese page)
Keyword(in English) total knee arthroplasty / knee movement / proximity of opposing knee-joint surfaces / intraoperative monitoring / accuracy verification
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Conference Information
Committee MBE
Conference Date 1998/5/29(1days)
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Paper Information
Registration To ME and Bio Cybernetics (MBE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Accuracy Verification of Intraoperative Monitoring of Knee-Motion after Total Knee Arthroplasty using a 6-DOF Measurement System, KKN/1B
Sub Title (in English)
Keyword(1) total knee arthroplasty
Keyword(2) knee movement
Keyword(3) proximity of opposing knee-joint surfaces
Keyword(4) intraoperative monitoring
Keyword(5) accuracy verification
1st Author's Name K. Nishino
1st Author's Affiliation Graduate School of Science and Technology, Niigata University()
2nd Author's Name T. Hayashi
2nd Author's Affiliation Department of Biocybemetics, Faculty of Engineering, Niigata University
3rd Author's Name Y. Kondo
3rd Author's Affiliation Graduate School of Science and Technology, Niigata University
4th Author's Name Y. Suzuki
4th Author's Affiliation Graduate School of Medicine, Niigata University
5th Author's Name Y. Koga
5th Author's Affiliation Department of Orthopaedic Surgery, Niigata Kobari Hospital
6th Author's Name G. Omori
6th Author's Affiliation Department of Orthopaedic Surgery, Faculty of Medicine, Niigata University
Date 1998/5/29
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Volume (vol) vol.98
Number (no) 94
Page pp.pp.-
#Pages 8
Date of Issue