Spine
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Retrospective study from data from a single access surgeon at 2 hospitals. ⋯ The high frequency of multiple ILVs found during the anterior approach is crucial knowledge for access surgeons, as it will help them anticipate such anomalies and thus avoid the potentially catastrophic complications of an avulsion of an unexpected extra vein.
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Seven different combinations of posterior screw fixation, with or without interbody support, were compared in vitro using nondestructive flexibility tests. ⋯ Bilateral CS-rod fixation provided about the same stability in cadaveric specimens as PS-rod fixation regardless of the presence of interbody, TLIF, or DLIF support.
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Randomized Controlled Trial Multicenter Study Comparative Study
Acupuncture for chronic low back pain: a multicenter, randomized, patient-assessor blind, sham-controlled clinical trial.
Multicenter, randomized, patient-assessor blind, sham-controlled clinical trial. ⋯ This randomized sham-controlled trial suggests that acupuncture treatment shows better effect on the reduction of the bothersomeness and pain intensity than sham control in participants with cLBP.
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Subgroup analysis of a prospective, randomized database. ⋯ Lumbar fusion and instrumentation were not associated with increased rate of reoperation at index or adjacent levels compared with nonfusion techniques. The only specific risk factor for reoperation after treatment of spinal stenosis was duration of pretreatment symptoms more than 12 months. The overall incidence of reoperations for spinal stenosis surgery was 13%, and reoperations were equally distributed between index and adjacent lumbar levels. Reoperation may be related to the natural history of spinal degenerative disease.