Spine
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Randomized Controlled Trial Comparative Study
Clinical study of low back pain and radicular pain pathways by using l2 spinal nerve root infiltration: a randomized, controlled, clinical trial.
Randomized control trial (RCT) for L2 spinal nerve infiltration (L2 block) in clinical cases. ⋯ The LBP and radicular pain pathways were likely interrupted by L2 block. An L2 block is useful in reducing LBP due to the disorders of L2 spinal nerve-innervated structures, such as the disc, facet joint, and sacroiliac joint. However, the therapeutic value of an L2 block may be occasionally insufficient to alleviate pain completely because of the short duration of its' effect.
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Prospective cohort study of patients registered for elective surgical lumbar discectomy (ESLD) between November 1999 and December 2003 at a major tertiary care center in Vancouver. ⋯ These results provide evidence that, contrary to conventional wisdom, compensation status was not associated with longer waits for ESLD. While patients receiving compensation have elsewhere been observed to have worse outcomes after discectomy, our results suggest this is unlikely to be due to delays imposed by queuing.
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Controlled laboratory study. ⋯ These findings provide baseline information to enable the study of kinematic changes that occur in pathologic conditions of the spine and to determine how these might be affected following surgical intervention.
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Prospective cohort study. ⋯ Larger anular defects and less disc removal increased the risk of reherniation. Greater volumes of disc removal were associated with accelerated disc height loss. In the setting of larger anular defects or less aggressive disc removal, concern for recurrent herniation should be increased during outpatient follow-up. In this situation effective anular repair may be helpful.
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Randomized Controlled Trial
Evaluation of the effectiveness and efficacy of Iyengar yoga therapy on chronic low back pain.
The effectiveness and efficacy of Iyengar yoga for chronic low back pain (CLBP) were assessed with intention-to-treat and per-protocol analysis. Ninety subjects were randomized to a yoga (n = 43) or control group (n = 47) receiving standard medical care. Participants were followed 6 months after completion of the intervention. ⋯ Yoga improves functional disability, pain intensity, and depression in adults with CLBP. There was also a clinically important trend for the yoga group to reduce their pain medication usage compared to the control group.