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Decreased muscle mass is independently associated with knee pain in female patients with radiographically mild osteoarthritis: a nationwide cross-sectional study (KNHANES 2010-2011)

Authors
 Hee Min Park  ;  Ho Jae Kim  ;  Byeori Lee  ;  Minkyoung Kwon  ;  Seung Min Jung  ;  Sang-Won Lee  ;  Yong-Beom Park  ;  Jason Jungsik Song 
Citation
 Clinical Rheumatology, Vol.37(5) : 1333-1340, 2018 
Journal Title
 Clinical Rheumatology 
ISSN
 0770-3198 
Issue Date
2018
Keywords
Knee osteoarthritis ; Knee pain ; Muscle mass ; Radiographic severity ; Sarcopenia
Abstract
To evaluate the association between muscle mass and knee pain in relation to radiographic severity of knee osteoarthritis. We consulted nationwide health examination and survey records collected from 2010 to 2011 and extracted data regarding female patients aged > 50 years and diagnosed with knee osteoarthritis. Radiographic severity was assessed on plain radiographs using the Kellgren-Lawrence system, whereas appendicular skeletal mass was obtained from dual-energy X-ray absorptiometry data. We performed multivariate logistic regression to evaluate the association between knee pain and muscle mass index (appendicular skeletal muscle mass divided by body weight in percentile) in patient groups stratified by radiographic severity of knee osteoarthritis. Among 17,476 participants of the national survey, 2013 female knee osteoarthritis patients were identified and stratified by radiographic severity (grade </= 1, n = 1136; grade 2, n = 240; grade 3, n = 379; and grade 4, n = 258). For mild osteoarthritis (Kellgren-Lawrence grade 2), muscle mass index was significantly lower in patients with knee pain than in those without knee pain (24.9 +/- 3.9 vs 26.5 +/- 6.3%, P = 0.023), whereas no such difference was noted for severe osteoarthritis (Kellgren-Lawrence grade > 2). After adjusting for clinical variables by multivariate logistic regression, decreased muscle mass index remained significantly associated with knee pain in patients with mild osteoarthritis but not in those with severe osteoarthritis (regression coefficient 0.915, 95% confidence interval 0.854-0.981, P = 0.012). Lower muscle mass may be a risk factor for knee pain in patients with radiographically mild knee osteoarthritis but not in those with radiographically severe osteoarthritis.
Full Text
https://link.springer.com/article/10.1007%2Fs10067-017-3942-9
DOI
10.1007/s10067-017-3942-9
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
박용범(Park, Yong Beom)
송정식(Song, Jungsik Jason) ORCID logo https://orcid.org/0000-0003-0662-7704
이상원(Lee, Sang Won) ORCID logo https://orcid.org/0000-0002-8038-3341
정승민(Jung, Seung Min ) ORCID logo https://orcid.org/0000-0003-3465-2181
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/162470
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