Articles: low-back-pain.
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Observational Study
Persistence, not avoidance, is associated with low back pain-An observational cohort study.
Low back pain (LBP) is increasingly understood as a long-lasting condition with a variable course. Avoidance and persistence behaviour have been described to mediate pain persistence by potentially linking psychosocial factors and biomechanics. The resulting maladaptive changes in musculoskeletal structures can result in movement control impairment (MCI). This investigation aimed to observe avoidance and persistence behaviour and MCI in participants with acute LBP over 1 year and explore their association with pain persistence. ⋯ In acute low back pain (LBP), maintaining usual activities despite pain and distress can contribute to the continuation of LBP. Alongside a multidimensional approach that considers physical and psychological factors, attitudes toward daily activities are also important. Screening for both maladaptive and adaptive activity patterns in individuals with acute LBP is essential for effective LBP management, improving patient outcomes, and preventing persistent pain.
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This study set out to investigate in a population-based longitudinal cohort, whether chronification of back pain (BP) is related to structural gray matter changes in corticolimbic brain structures. Gray matter volume (GMV) was measured in participants with chronic BP (CBP, n = 168) and controls without chronic pain (n = 323) at 2 time points with an interval of 7 years (baseline t1, follow-up t2). Over this time period, participants with CBP showed an increase of GMV in the left ventral striatum, whereas controls showed a decrease. ⋯ Those with emerging CBP had less GMV in the right entorhinal area, right amygdala, and left medial frontal cortex. Additional variables differing between those who had BP at t1 and later developed CBP or not were pain intensity, body mass index, and depression score. In sum, these findings are in accordance with the notion that limbic brain properties are both predisposing risk factors and drivers of brain reorganization during the development of CBP.
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Despite the use of Patient-Drawn Pain Drawings (PDPDs) in clinical settings, their validity as indicators of psychological distress remains debated. We aimed to assess the association between PDPD areas and physical health and psychological variables. ⋯ This large-scale study demonstrates that extensive pain areas in pain drawings drawn by LBP patients do not signify psychological distress. Our findings reveal that these pain representations are more closely linked to increased pain intensity, pain duration, and disability rather than being independently associated with psychological factors. Clinicians are encouraged to focus on the association of extensive pain areas with physical symptoms rather than psychological distress during clinical assessments.
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Trunk co-contraction during lifting may reflect a guarded motor response to a threatening task. This work estimated the impact of pain catastrophizing on trunk co-contraction during lifting, in people with and without low back pain. ⋯ This work contributes evidence that people with back pain commonly exhibit trunk co-contraction when lifting. The lack of a relationship between pain catastrophizing and trunk co-contraction, however, challenges evidence linking psychological factors and guarded motor behaviour in this group. Together, this suggests that other factors may be stronger determinants of co-contraction in people with LBP or that a general construct like pain catastrophizing may not accurately represent this relationship.
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Emerg Med Australas · Feb 2025
Multicenter Study Observational StudyHospitalisations for non-specific low back pain in people presenting to South Australian public hospital emergency departments.
The present study sought to investigate predictors of hospitalisation in adults diagnosed with non-specific low back pain (LBP) and/or sciatica from an ED. ⋯ Certain patient characteristics and ED clinical activity are associated with hospitalisations for LBP. Understanding these factors will better inform the design and delivery of appropriate high-quality care.