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ID 13926
Eprint ID
13926
FullText URL
Thumnail 105_823.pdf 2.54 MB
Title Alternative
Clinical and radiographic follow-up study of cementless total knee replacement (Mark Ⅱ, Okayama University Type) for Rheumatoid Arthritis : Over ten years follow-up study
Author
Yamasu, Kiyofumi
Abstract
In 1975, the Okayama Mark Ⅱ prosthesis was introduced at the Okayama University Hospital and 21 patients (33 knees) with rheumatoid arthritis were followed for ten years or more after implantation of the device. The average follow-up period was 13 years and 7 months (range, 10 years and 3 months to 16 years and 4 months). The average age at surgery was 50 years and 4 months. There were 3 male patients. Clinical results were assessed using a knee assessment chart designed by three universities. Femorotibial angle and the setting angle of the tibial and femoral components in relation to the axes of the tibia or femur were examined on X-rays. Clinical assessment improved from 39.8±15.7 points to 71.2±18.3 points (five-year follow-up), and decreased to 62.2±17.9 points at final examination. On X-ray, the alpha angle (one of the setting angles of the tibial plate) decreased from 88.0±3.0 degrees (at postoperative examination) to 86.7±3.7 degrees (at final examination). Also on X-ray, femoral components appeared to sink proximally in 36% of our cases. There were few problems with tibial components of the Okayama Mark Ⅱ prosthesis despite the lack of a metal-backed tray on the tibial component. The sinking of the femoral component occurred relatively more frequently with the Okayama Mark Ⅱ than with other types of total knee replacement.
Keywords
cementless TKR
Okayama Mark Ⅱ TKR
Rheumatoid knee
long-term follow-up
femoral component
Note
原著
Published Date
1993-10
Publication Title
岡山医学会雑誌
Publication Title Alternative
Journal of Okayama Medical Association
Volume
volume105
Issue
issue9-10
Publisher
岡山医学会
Publisher Alternative
Okayama Medical Association
Start Page
823
End Page
837
ISSN
0030-1558
NCID
AN00032489
Content Type
Journal Article
Official Url
https://www.jstage.jst.go.jp/article/joma1947/105/9-10/105_9-10_823/_article/-char/ja/
Related Url
http://www.okayama-u.ac.jp/user/oma/index.html
language
日本語
Copyright Holders
岡山医学会
File Version
publisher
Refereed
True
Eprints Journal Name
joma