Articles: low-back-pain.
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Osteoarthr. Cartil. · Dec 2009
p38 MAPK inhibition selectively mitigates inflammatory mediators and VEGF production in AF cells co-cultured with activated macrophage-like THP-1 cells.
Recent data have suggested that macrophages are involved in the pathogenesis of discogenic back pain and enhance the secretion of inflammatory mediators in co-cultured annulus fibrosus (AF) cells. The purpose of these studies is to determine the role of p38 mitogen-activated protein kinase (p38 MAPK) signaling in the interactions between macrophage and AF cells. ⋯ Annular injury can result in macrophage infiltration, and this can cause enhanced inflammatory mediator and VEGF production by AF cells. The p38 MAPK pathway signals are responsible for much of IL-6 and PG secretion from AF cells with macrophage-like cells, suggesting that blockade of this signal may serve as a therapeutic approach to discogenic pain.
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This study investigated the reliability, validity and diagnostic accuracy of manual palpation of the sciatic, tibial and common peroneal nerves in the examination of 45 subjects with low-back related leg pain. The nerves were palpated manually and with an algometer, to determine pressure pain thresholds (PPTs). A second examiner performed the straight leg raise (SLR) and slump tests to determine nerve trunk mechanosensitivity. ⋯ PPTs were significantly lower on the symptomatic side, for each of the three nerves, in subjects who were positive on manual palpation. In subjects who were negative on manual palpation, PPTs were not significantly different between sides, demonstrating criterion-based validity, using PPT as the criterion. Highest scores of diagnostic accuracy were obtained when two or more of the three nerves were positive on palpation (sensitivity = 0.83; specificity = 0.73).
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Ann Phys Rehabil Med · Dec 2009
Comparative StudyComparison of the repercussions of cLBP in four French-speaking countries.
Sociocultural factors may influence the impact of chronic low back pain (cLBP) on patients. The goal of this study was to compare pain and disability levels, and psychobehavioural parameters in four French-speaking countries in patients with cLBP. ⋯ In this population of patients with cLBP, despite similar disability levels across the four French-speaking countries, there were considerable variations in pain level and psychobehavioural repercussions.
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Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi · Dec 2009
[Distribution characteristics of Modic changes of lumbar endplate and its relationship with low back pain].
To investigate the incidence of Modic changes of lumbar endplate and its clinical significances. ⋯ The most common Modic change is type II and the most frequently involved level is the L5, S1. Modic changes are more common in female than in male and mainly happen to the obesity group. The incidence of LBP is higher in the patients with Modic change.
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Randomized Controlled Trial Multicenter Study Comparative Study
Aceclofenac-tizanidine in the treatment of acute low back pain: a double-blind, double-dummy, randomized, multicentric, comparative study against aceclofenac alone.
Tizanidine and aceclofenac individually have shown efficacy in the treatment of low back pain. The efficacy and tolerability of the combination have not yet been established. The objective of the study was to evaluate the efficacy and safety of aceclofenac-tizanidine fixed dose combination against aceclofenac alone in patients with acute low back pain. ⋯ There were significantly more number of patients with excellent to good response for the aceclofenac-tizanidine treatment as compared to aceclofenac alone (P = 0.00). Both the treatments were well tolerated. In this study, aceclofenac-tizanidine combination was more effective than aceclofenac alone and had a favourable safety profile in the treatment of acute low back pain.