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Correlation of maximum flexion with clinical outcome after total knee replacement in Asian patients

Authors
 K. K. Park  ;  C. B. Chang  ;  T. K. Kim  ;  S. C. Seong  ;  Y. G. Kang 
Citation
 JOURNAL OF BONE AND JOINT SURGERY-BRITISH VOLUME , Vol.89B(5) : 604-608, 2007 
Journal Title
 JOURNAL OF BONE AND JOINT SURGERY-BRITISH VOLUME 
ISSN
 0301-620X 
Issue Date
2007
MeSH
Aged ; Aged, 80 and over ; Arthroplasty, Replacement, Knee/rehabilitation* ; Female ; Follow-Up Studies ; Humans ; Knee Joint/physiopathology* ; Male ; Middle Aged ; Pain Measurement ; Prognosis ; Quality of Life ; Range of Motion, Articular* ; Severity of Illness Index
Abstract
This study aimed to determine the correlation between the amount of maximum flexion and the clinical outcome in 207 Koreans (333 knees) undergoing total knee replacement. The association of maximum flexion with clinical outcome was evaluated one year postoperatively using three scoring systems; the American Knee Society score, Western Ontario McMaster Universities Osteoarthritis index and the Short Form-36. The mean maximum flexion decreased post-operatively at 12 months from 140.1° (60° to 160°) to 133.0° (105° to 150°). Only the social function score of the Short Form-36 correlated significantly with maximum flexion (correlation coefficient = 0.180, p = 0.039). In comparative analyses of subgroups divided by a maximum flexion of 120°, we found no significant differences in any parameters except the social function score of the Short Form-36 (41.9 vs 47.3, p = 0.031). Knees with a maximum flexion of more than 135° had a better functional Western Ontario McMasters Universities Osteoarthritis index score than knees with maximum flexion of 135° or less (17.5 vs 14.3, p = 0.031). We found only weak correlation between the postoperative maximum flexion and the clinical parameters for pain relief, function and quality of life, even in Korean patients. Efforts to increase post-operative maximum flexion should be exercised with caution until concerns relating to high-flexion activities are sufficiently resolved.
Files in This Item:
T200705624.pdf Download
DOI
10.1302/0301-620X.89B5.18117
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Orthopedic Surgery (정형외과학교실) > 1. Journal Papers
Yonsei Authors
Park, Kwan Kyu(박관규) ORCID logo https://orcid.org/0000-0003-0514-3257
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/96240
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