Spine
-
Case control study. ⋯ Cervical motion segment contributions to flexion-extension change significantly during the flexion-extension motion. The largest change in percent contribution to motion, relative to controls, occurs at the C6-C7 motion segment, over the entire ROM, suggesting a potential mechanical mechanism for the clinical observation of increased incidence of adjacent segment degeneration at C6-C7 rather than at C4-C5 after C5-C6 arthrodesis.
-
Cross-sectional analysis of patient-reported preoperative data. ⋯ We developed a valid and reliable patient-derived expectations survey for patients undergoing cervical spine surgery that addresses expectations for physical and psychological well-being and generates an easy-to-interpret overall score. The survey can be used clinically and for research and fills a gap in the comprehensive preoperative assessment of patients undergoing cervical spine surgery.
-
Extensive validation of the pain disability index in 3 groups of patients with musculoskeletal pain.
A cross-sectional study design was performed. ⋯ The PDI-Dutch language version is internally consistent as a 1-factor structure, and test-retest reliable. Missing items seem high in sexual and professional items. Using the PDI as a 2-factor questionnaire has no additional value and is unreliable.
-
Retrospective consecutive case series. ⋯ "Worsening" and "symptoms combination" are progression characteristics of SDAVF. Patients should undergo spinal magnetic resonance imaging when they are first suspected to have SDAVF. Magnetic resonance angiography and computed tomography angiography as noninvasive angiography are helpful for diagnosis.
-
Nationwide epidemiological cohort study. ⋯ From 2005 to 2008, the overall incidence of C2 fracture rose at a rate that was 3.5 times faster than the elderly population growth.