Paper Abstract and Keywords |
Presentation |
2019-05-19 09:50
Quantitative evaluation of the femoral condylar shape in the knee joint with the discoid meniscus Takeru Hirano, Toyohiko Hayashi (Niigata Univ), Satoshi Watanabe (Niigata Medical Center) MBE2019-3 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In order to reduce the load working on the knee joint, two meniscuses are placed as soft tissue on the lateral and medial sides of the tibial joint surface. Normal meniscus has a crescent shape, but lateral meniscus rarely becomes discoid. Although the femoral condylar surface is reported to be flattened in the knees with discoid meniscus, such phenomenon has yet to be evaluated quantitatively. Then this study quantified the flatness of the femoral condylar surface in the following manner: 1) the contour of the subchondral bone was extracted in the midsagittal MR images of the lateral femoral condyle; 2) the position on the contour was normalized as 0 % - 100 % from the point contact with the most anterior point of the meniscus to the most proximal point, respectively; and 3) the radius of curvature was computed at every position (%) on the contour. Then the radius of curvature was compared between the knees with discoid meniscus (4 cases) and those with normal meniscus (8 cases). Consequently, the former knees were flattened significantly from 31 % to 41 % of the contour than the latter knees. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Meniscus / Discoid meniscus / Femoral condyle / MR image / Radius of curvature / / / |
Reference Info. |
IEICE Tech. Rep., vol. 119, no. 44, MBE2019-3, pp. 13-18, May 2019. |
Paper # |
MBE2019-3 |
Date of Issue |
2019-05-12 (MBE) |
ISSN |
Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
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MBE2019-3 |
Conference Information |
Committee |
MBE |
Conference Date |
2019-05-19 - 2019-05-19 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Niigata University |
Topics (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
MBE |
Conference Code |
2019-05-MBE |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Quantitative evaluation of the femoral condylar shape in the knee joint with the discoid meniscus |
Sub Title (in English) |
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Keyword(1) |
Meniscus |
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Discoid meniscus |
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Femoral condyle |
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MR image |
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Radius of curvature |
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1st Author's Name |
Takeru Hirano |
1st Author's Affiliation |
Niigata University (Niigata Univ) |
2nd Author's Name |
Toyohiko Hayashi |
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Niigata University (Niigata Univ) |
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Satoshi Watanabe |
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Niigata Medical Center (Niigata Medical Center) |
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Speaker |
Author-1 |
Date Time |
2019-05-19 09:50:00 |
Presentation Time |
25 minutes |
Registration for |
MBE |
Paper # |
MBE2019-3 |
Volume (vol) |
vol.119 |
Number (no) |
no.44 |
Page |
pp.13-18 |
#Pages |
6 |
Date of Issue |
2019-05-12 (MBE) |
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