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Correlations between radiographic assessments and MRI features of knee osteoarthritis - a cross-sectional study

Gudbergsen, H. ; Lohmander, Stefan LU orcid ; Jones, G. ; Christensen, R. ; Bartels, E. M. ; Danneskiold-Samsoe, B. ; Bliddal, H. and Boesen, M. (2013) In Osteoarthritis and Cartilage 21(4). p.535-543
Abstract
Objectives: To assess correlations between Kellgren & Lawrence (KL) gradings, minimum joint space width (mJSW) measurements and the Boston Leeds Osteoarthritis Knee Score (BLOKS) within a cohort of obese patients with knee osteoarthritis (KOA). Methods: 192 Participants were recruited from an outpatient clinic (ClinicalTrials.gov: NCT00655941). Inclusion criteria were age >= 50 years, body mass index (BMI) >= 30 kg/m(2) plus symptomatic and verified KOA. 1.5 T magnetic resonance imaging (MRI) scans were assessed using BLOKS and bi-plane radiography by mJSW and KL. Statistics used were Spearman rank correlation coefficients. Results: The average patient was 63 years of age, female and had a BMI of 37. KL gradings correlated to... (More)
Objectives: To assess correlations between Kellgren & Lawrence (KL) gradings, minimum joint space width (mJSW) measurements and the Boston Leeds Osteoarthritis Knee Score (BLOKS) within a cohort of obese patients with knee osteoarthritis (KOA). Methods: 192 Participants were recruited from an outpatient clinic (ClinicalTrials.gov: NCT00655941). Inclusion criteria were age >= 50 years, body mass index (BMI) >= 30 kg/m(2) plus symptomatic and verified KOA. 1.5 T magnetic resonance imaging (MRI) scans were assessed using BLOKS and bi-plane radiography by mJSW and KL. Statistics used were Spearman rank correlation coefficients. Results: The average patient was 63 years of age, female and had a BMI of 37. KL gradings correlated to cartilage damage, bone marrow lesions and meniscus pathology (r = 0.15-0.76) and similar results were found for the relationship between BLOKS and mJSW. BLOKS assessed knee joint pathology co-segregated with compartment and grade specific KL (P < 0.0001). BLOKS variables were statistically significant correlated, particularly in the medial tibiofemoral compartment (r = 0.42-0.80). Adjusting for age, gender and BMI did not alter these associations. Conclusion: Extensive pathological damage is present even in mild radiographic KOA and BLOKS gradings and KL scores increase together. Analyses of compartment specific KL scores revealed differences in their relationship to the assessed MRI variables. Our study displays the segregation of MRI gradings with respect to location and level of radiographic scores, reveals a high inter-dependency of MRI-assessed structures, and describes some redundancy of specific BLOKS variables. (C) 2013 Published by Elsevier Ltd on behalf of Osteoarthritis Research Society International. (Less)
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author
; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
MRI, Knee osteoarthritis, Radiography, X-ray, KOA, Kellgren & Lawrence, KL, BLOKS
in
Osteoarthritis and Cartilage
volume
21
issue
4
pages
535 - 543
publisher
Elsevier
external identifiers
  • wos:000317323400002
  • scopus:84874980265
  • pmid:23274104
ISSN
1063-4584
DOI
10.1016/j.joca.2012.12.010
language
English
LU publication?
yes
id
923d0e67-c6a8-4e9e-bf78-613e03f6d683 (old id 3745295)
date added to LUP
2016-04-01 11:12:50
date last changed
2023-01-02 19:28:08
@article{923d0e67-c6a8-4e9e-bf78-613e03f6d683,
  abstract     = {{Objectives: To assess correlations between Kellgren &amp; Lawrence (KL) gradings, minimum joint space width (mJSW) measurements and the Boston Leeds Osteoarthritis Knee Score (BLOKS) within a cohort of obese patients with knee osteoarthritis (KOA). Methods: 192 Participants were recruited from an outpatient clinic (ClinicalTrials.gov: NCT00655941). Inclusion criteria were age &gt;= 50 years, body mass index (BMI) &gt;= 30 kg/m(2) plus symptomatic and verified KOA. 1.5 T magnetic resonance imaging (MRI) scans were assessed using BLOKS and bi-plane radiography by mJSW and KL. Statistics used were Spearman rank correlation coefficients. Results: The average patient was 63 years of age, female and had a BMI of 37. KL gradings correlated to cartilage damage, bone marrow lesions and meniscus pathology (r = 0.15-0.76) and similar results were found for the relationship between BLOKS and mJSW. BLOKS assessed knee joint pathology co-segregated with compartment and grade specific KL (P &lt; 0.0001). BLOKS variables were statistically significant correlated, particularly in the medial tibiofemoral compartment (r = 0.42-0.80). Adjusting for age, gender and BMI did not alter these associations. Conclusion: Extensive pathological damage is present even in mild radiographic KOA and BLOKS gradings and KL scores increase together. Analyses of compartment specific KL scores revealed differences in their relationship to the assessed MRI variables. Our study displays the segregation of MRI gradings with respect to location and level of radiographic scores, reveals a high inter-dependency of MRI-assessed structures, and describes some redundancy of specific BLOKS variables. (C) 2013 Published by Elsevier Ltd on behalf of Osteoarthritis Research Society International.}},
  author       = {{Gudbergsen, H. and Lohmander, Stefan and Jones, G. and Christensen, R. and Bartels, E. M. and Danneskiold-Samsoe, B. and Bliddal, H. and Boesen, M.}},
  issn         = {{1063-4584}},
  keywords     = {{MRI; Knee osteoarthritis; Radiography; X-ray; KOA; Kellgren & Lawrence; KL; BLOKS}},
  language     = {{eng}},
  number       = {{4}},
  pages        = {{535--543}},
  publisher    = {{Elsevier}},
  series       = {{Osteoarthritis and Cartilage}},
  title        = {{Correlations between radiographic assessments and MRI features of knee osteoarthritis - a cross-sectional study}},
  url          = {{http://dx.doi.org/10.1016/j.joca.2012.12.010}},
  doi          = {{10.1016/j.joca.2012.12.010}},
  volume       = {{21}},
  year         = {{2013}},
}