Spine
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Comparative Study
Development of a short form of the Örebro Musculoskeletal Pain Screening Questionnaire.
A longitudinal design where the questionnaire was completed at a pretest and predictive ability evaluated with a 1-year follow-up. A second sample was employed to provide a replication. ⋯ The short form of the ÖMSPQ is appropriate for clinical and research purposes, since it is nearly as accurate as the longer version.
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A cross-sectional survey of 2083 schoolchildren. ⋯ There is a high prevalence of LBP in Chinese schoolchildren. The occurrence of LBP increases with age in both sexes. LBP is significantly more prevalent in girls.
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Case Reports
Salvage of lumbar pseudarthrosis with customized large-diameter pedicle screws: report of two cases.
A report of two cases using custom-manufactured pedicle screws for revision spinal arthrodesis for pseudarthrosis in the setting of widely dilated pedicle screw tracts. ⋯ This is a previously unreported technique for revision spinal fusion in the setting of loose instrumentation with widely dilated pedicle screw tracts.
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Multicenter Study Clinical Trial
Lumbar vertebral growth is governed by "chondral growth force response curve" rather than "Hueter-Volkmann law": a clinico-biomechanical study of growth modulation changes in childhood spinal tuberculosis.
Vertebral defects were created in a validated 3D finite element model (FEM) to simulate destructive tubercular lesions of increasing severity. Forces in various parts of the spine were then calculated and correlated to deformity progression and growth modulation (GM) changes. ⋯ This is the first study in the current literature to demonstrate that spinal growth follows CGFRC rather than HVL. This observation opens a potential window of opportunity to treat spinal deformities by mechanical GM.
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Review Historical Article
Historical contributions from the Harvard system to adult spine surgery.
Literature review. ⋯ Despite humble beginnings, the surgeons and scientists at Harvard have influenced nearly every facet of spine surgery over the course of the last two centuries.