Spine
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Randomized Controlled Trial Multicenter Study Comparative Study
Minimally invasive decompression versus x-stop in lumbar spinal stenosis: a randomized controlled multicenter study.
Prospective randomized controlled multicenter study. ⋯ Both MID and X-Stop led to significant symptom improvements. There were no significant clinical differences in effect between the methods at any of the follow-up time points. X-Stop had significant higher risk of secondary surgery. Complication was more severe for MID.
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Randomized Controlled Trial Multicenter Study Observational Study
Long-term outcomes of lumbar spinal stenosis: eight-year results of the Spine Patient Outcomes Research Trial (SPORT).
Randomized trial with a concurrent observational cohort study. ⋯ Patients with symptomatic spinal stenosis show diminishing benefits of surgery in as-treated analyses of the randomized group between 4 and 8 years, whereas outcomes in the observational group remained stable. Loss to follow-up of patients with worse early outcomes in both treatment groups could lead to overestimates of long-term outcomes but likely not bias treatment effect estimates.
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Multicenter Study Comparative Study
Comparative study of 2 surgical procedures for osteoporotic delayed vertebral collapse: anterior and posterior combined surgery versus posterior spinal fusion with vertebroplasty.
Retrospective comparative study. ⋯ AP surgery provides stable spinal fixation and reduces implant failure particularly at the thoracolumbar junction because of load bearing of anterior spinal elements. Surgery-related complications in AP surgery were as few in number as with the VP group, and AP surgery is useful for osteoporotic delayed vertebral fracture.
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Randomized Controlled Trial
Monitoring the quality of robot-assisted pedicle screw fixation in the lumbar spine by using a cumulative summation test.
Prospective randomized controlled trial. ⋯ First, this study demonstrates the adequacy of quality control of robot-assisted pedicle screw fixation even early in the application period based on the CUSUM analysis. Second, the CUSUM test can be a useful tool for monitoring of the quality of procedures related with spine surgery.
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Cross-cultural adaptation and psychometric testing. ⋯ The NDI-PT demonstrated excellent reliability and good construct validity and it may be useful for assessing functional status of Portuguese-speaking patients with CNP.