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ID 30792
JaLCDOI
フルテキストURL
著者
Shigeyama, Yukio Okayama University
Inoue, Hajime Okayama University
Hashizume, Hiroyuki Okayama University
Nagashima, Hiroaki Okayama University
Senda, Masuo Okayama University Kaken ID researchmap
抄録

Accurate assessment of elbow function is important to determine the total ability of the arm. The purpose of this study was to clarify the relationship between isometric muscle strength of the elbows of patients with rheumatoid arthritis (RA) and Larsen's X-ray evaluation. Fifty-six elbows of 45 RA patients aged 47 to 77 years (mean age, 63 years) were tested. Muscle strength was measured with an isometric torque-cell dynamometer. Test-retest reliability of the dynamometer was proven by measuring 12 elbows of 6 healthy young men. In RA patients, elbow flexion and extension strength decreased in proportion to increases in the severity of Larsen's grades from Grade 1 to 4. However, Grade 5 elbows had greater muscle strength than those in Grade 4. Forearm pronation and supination strength also decreased in proportion to increases in the severity of Larsen's grades from Grade 1 to 5. This quantitative study made it clear that the muscle strength of RA patients' elbows almost completely correlates to X-ray finding according to the grade of Larsen's evaluation based on X-rays. With regard to muscle strength of postoperative elbows, both flexion strength and supination strength after total elbow replacement (TER) were about two times greater than before TER, and after synovectomy it was as great as those in non-operative RA patients of Grade 2.

キーワード
elbow
rheumatoid arthritis
muscle strength
Larsen's X-ray evaluation
Amo Type
Article
発行日
1997-10
出版物タイトル
Acta Medica Okayama
51巻
5号
出版者
Okayama University Medical School
開始ページ
267
終了ページ
274
ISSN
0386-300X
NCID
AA00508441
資料タイプ
学術雑誌論文
言語
English
論文のバージョン
publisher
査読
有り
PubMed ID
Web of Science KeyUT