Articles: low-back-pain.
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Randomized Controlled Trial Clinical Trial
Effects of trigger point acupuncture on chronic low back pain in elderly patients--a sham-controlled randomised trial.
There is some evidence for the efficacy of acupuncture, but it remains unclear whether trigger point acupuncture is effective. Our objective was to evaluate the effects of trigger point acupuncture on pain and quality of life in chronic low back pain patients compared with sham acupuncture. ⋯ These results suggest that trigger point acupuncture may have greater short term effects on low back pain in elderly patients than sham acupuncture.
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Comparative Study
Effects of pelvic asymmetry and low back pain on trunk kinematics during sitting: a comparison with standing.
A prospective study was conducted on a group of patients with unilateral nonspecific low back pain (LBP) and healthy controls. ⋯ This study shows a link between pelvic asymmetry and altered trunk motion in sitting position. We suggest that people with LBP may have a distinct compensatory mechanism, secondary to pelvic asymmetry, which puts the lumbar spine under higher stress. Movement asymmetry, rather than range of motion, may be a better indicator of disturbed function for people with LBP. Structural and functional asymmetries are factors that may be considered in the seating design and work environment.
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We collected the specimens of lumbar intervertebral disc (i.e., the symptomatic degenerative disc) from patients with discogenic low back pain to study the histopathologic features and growth factor expressions. ⋯ The findings indicated that degeneration of the painful disc might originate from the injury and subsequent repair of anulus fibrosus. Growth factors, such as bFGF and TGF-beta1, macrophages and mast cells might play a key role in the repair of the injured anulus fibrosus and subsequent disc degeneration.
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Retrospective data review of positive disc injections at low pressures among subjects without chronic low back pain (LBP) illness compared to patients with chronic LBP undergoing Discography. ⋯ The analysis shows that the rate of low-pressure painful injections in subjects without chronic LBP illness is approximately 25%, and correlates with both anatomic and psychosocial factors. In certain subgroups, this may represent an unacceptable risk of false-positive results.
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AJR Am J Roentgenol · Mar 2006
Axial rotation of the lumbar spinal motion segments correlated with concordant pain on discography: a preliminary study.
One possible cause of back pain in patients with intervertebral disk degeneration is decreased stability of the motion segment. Axial rotations between lumbar spinal vertebrae can be measured noninvasively with CT. We tested the hypothesis that larger axial rotations are found in motion segments with disks that test positive for concordant pain, which is considered by some investigators to be a reasonable, accurate predictor of spinal instability. ⋯ Concordant pain at discography predicts increased axial rotation at a lumbar disk level.