Interaction between low back pain and knee pain contributes to disability level in individuals with knee osteoarthritis: a cross-sectional study

Osteoarthritis and Cartilage
Hirotaka IijimaMasaki Takahashi

Abstract

To test the hypothesis that the interaction between low back pain (LBP) and knee pain intensity contributes to the disability level of individuals with knee osteoarthritis (OA). Community-dwelling participants with knee OA (Kellgren/Lawrence [K/L] grade ≥1) were enrolled. LBP and its severity were identified using questionnaires. Knee pain severity and disability level were evaluated using the Japanese Knee Osteoarthritis Measure (JKOM) subscale. Multiple linear regression analyses were performed to examine the effect of the LBP-knee pain interaction, an independent variable, on disability, a dependent variable. A total of 260 participants (age, 48-88 years; 77.7% women) were included. Of them, 151 (58.1%) had LBP. The LBP-knee pain interaction was significantly associated with disability after the adjustment for covariates. A post-hoc subgroup analysis revealed that the relationship between knee pain intensity and disability level was higher in individuals with LBP (beta: 0.621 points; 95% confidence interval [CI]: 0.511 to 0.731 points) than in those without LBP (beta: 0.402 points; 95% CI: 0.316 to 0.487 points). LBP interacts with knee pain intensity and contributes to disability level in individuals with knee OA. Coexistin...Continue Reading

Citations

Jun 30, 2019·Arthritis Care & Research·Hirotaka IijimaMasaki Takahashi
Dec 31, 2020·Pain Medicine : the Official Journal of the American Academy of Pain Medicine·Kaname UedaHiroyuki Enomoto
Jan 8, 2020·Arthritis Care & Research·Hirotaka IijimaMasaki Takahashi
Feb 15, 2021·PM & R : the Journal of Injury, Function, and Rehabilitation·Lindsey Brown-TaylorStephanie Di Stasi
May 2, 2021·Clinical Nutrition : Official Journal of the European Society of Parenteral and Enteral Nutrition·Guangfeng RuanChanghai Ding
Aug 25, 2021·Journal of Applied Biomechanics·Oladipo EddoNelson Cortes

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