Miura K, et al. - A total of 1,276 rheumatoid arthritis (RA) cases were studied to analyze the prevalence of and factors associated with dysfunctional low back pain (LBP) in patients with RA. The investigators found that the prevalence of dysfunctional LBP was 32.8%. They noted that body mass index (BMI), onset age of RA, disease duration of RA, methotrexate (MTX) use, vertebral fractures, vertebral endplate and/or facet erosion, disease activity score (DAS) in 28 joints-CRP (DAS-28CRP), pelvic tilt (PT), and sagittal vertical axis (SVA) were correlated factors. They also highlighted the importance of strictly controlling patients' body weight and disease activity with MTX and avoiding spinopelvic malalignment through vertebral fracture prevention.