Spine
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Randomized Controlled Trial Multicenter Study
Surgical versus nonoperative treatment for lumbar spinal stenosis four-year results of the Spine Patient Outcomes Research Trial.
Randomized trial and concurrent observational cohort study. ⋯ Patients with symptomatic spinal stenosis treated surgically compared to those treated nonoperatively maintain substantially greater improvement in pain and function through 4 years.
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Cross-sectional and longitudinal designs within a prospective cohort study. ⋯ Psychometric properties of the Norwegian version of FFbH-R were satisfactory in patients with long-lasting back pain, but the dynamic strength and posture endurance subscales might be complemented with additional items.
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A preliminary cross-sectional comparative study of adolescents with nonspecific chronic low back pain (NSCLBP) and healthy controls. ⋯ This study provides preliminary results. Differences with sitting posture are only seen when adolescents with NSCLBP are classified. Trunk muscle activation is not a sensitive marker for discriminating subgroups of NSCLBP during adolescence.
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Determination of reliability with 3 investigators using a collective of healthy volunteers. ⋯ The reliability revealed very good results, both for intratester and for intertester reliability. The technique is well suited for analysis of the back in standing position. The body mass index has no influence on the reproducibility.
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Prospective study. ⋯ In this study, HSC disappeared in most pedicles on the 3-month follow-up MRI. In patients who did not comply with treatment, HSC tended to last longer. These results led us to hypothesize that MRI at the third month during follow-up can indicate whether the conservative treatment is being successful or not.