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. 2020 Aug 12;22(1):187.
doi: 10.1186/s13075-020-02280-2.

Relationship between radiological severity and physical and mental health in elderly individuals with knee osteoarthritis

Isadora Cristina Ribeiro  1 , Arlete Maria Valente Coimbra  2 , Beatriz Lavras Costallat  2 , Ibsen Bellini Coimbra  2
Affiliations

Relationship between radiological severity and physical and mental health in elderly individuals with knee osteoarthritis

Isadora Cristina Ribeiro et al. Arthritis Res Ther. .

Abstract

Background: This study aimed to investigate the relationship between radiological severity, as assessed by the individual grades and grouped grades (grades "0 and 1" and "2 to 4") of the Kellgren-Lawrence scale (K&Ls), and depression symptoms, cognitive loss, risk of falls, and quality of life in relation to knee osteoarthritis, as assessed by other instruments.

Methods: Data recorded between 2013 and 2014 in Amparo (São Paulo, Brazil) were retrieved for analysis. A total of 181 elderly patients who had knee osteoarthritis and underwent a radiologic exam were evaluated for depressive symptoms, cognitive loss, quality of life, and risk of falls by the Geriatric Depression Scale (GDS), Mini-Mental State Examination (MMSE), Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), timed up and go test (TUG), and Berg balance scale (BBS). For statistical analyses, Fisher's exact test, Mann-Whitney test, Kruskal-Wallis test, and Spearman's coefficient analysis were used.

Results: There was no significant relationship between the scores of the instruments investigated and the individual K&Ls grades. However, when the K&Ls scores were assessed by groups, grades "2 to 4" were associated with the worst WOMAC score and the highest frequency and risk of falls according to the BBS but not according to TUG. For the GDS and MMSE, no significant relationships with the K&Ls grades were found. In addition, the K&Ls grade was correlated with the WOMAC score, regardless of the domain.

Conclusion: The radiological scores of the Kellgren-Lawrence (K&L) scale were associated with poorer WOMAC and BBS scores only when the K&Ls scores were evaluated in groups, and the WOMAC score was associated with an increase in the radiological grade.

Keywords: Elderly; Osteoarthritis; Radiography.

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Conflict of interest statement

The authors declare that they have no competing interests.

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