The Clinical journal of pain
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Quadriceps muscle weakness and vitamin D deficiency are associated with knee osteoarthritis (KOA). This study aimed to investigate the relationship between quadriceps muscle strength (QMS) and vitamin D in KOA. ⋯ These findings demonstrated a significant correlation between QMS with both serum vitamin D and knee pain, indicating a confounding role for quadriceps muscle in the association between serum vitamin D and osteoarthritis knee pain. On the basis of the findings of this study, vitamin D supplementation may affect pain by strengthening quadriceps muscle in KOA.
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The primary aim was to characterize the temporal dynamics of postoperative pain intensity using symbolic aggregate approximation (SAX). The secondary aim was to explore the effects of sociodemographic and clinical factors on the SAX representations of postoperative pain intensity. ⋯ SAX offers a feasible and effective framework for characterizing large-scale postoperative pain within the time domain. Stratification of SAX representations demonstrate unique temporal dynamic profiles on the basis of age group, sex, type of surgery, preoperative opioid use, and across PODs 1 to 7.
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To investigate the efficacy and safety of magnesium sulfate as an adjuvant of local anesthetics in perineural nerve blocks. ⋯ The present study suggests that combined magnesium sulfate and local anesthetics in perineural nerve blocks provided better analgesic efficacy. For it prolongs the postoperative duration time of analgesia, sensory and motor block without increasing the short-term side effects. Magnesium sulfate may be a promising analgesic for perineural nerve blocks, but further studies are required to validate our results.
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To explore the existence of subgroups in a cohort with chronic low back pain (n=294) based upon data from multiple psychological questionnaires, and profile subgroups on data from multiple dimensions. ⋯ Clinical implications relating to presentations of each cluster are postulated.
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The objective of this prospective, open-label study was to determine the long-term effect of medicinal cannabis treatment on pain and functional outcomes in participants with treatment-resistant chronic pain. ⋯ The treatment of chronic pain with medicinal cannabis in this open-label, prospective cohort resulted in improved pain and functional outcomes, and a significant reduction in opioid use. Results suggest long-term benefit of cannabis treatment in this group of patients, but the study's noncontrolled nature should be considered when extrapolating the results.