Spine
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A biomechanical analysis of soft-tissue restraints to passive motion in odontoid fractures. ⋯ This study identifies that type II odontoid fractures without associated soft-tissue injury may be stable under certain loading modes.
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Comparative Study
Comparison of sagittal spinopelvic alignment in Chinese adolescents with and without idiopathic thoracic scoliosis.
A retrospective radiographical study investigated the sagittal alignment in healthy Chinese girls and Chinese girls with idiopathic thoracic scoliosis (T-AIS). ⋯ In our study, the Chinese girls with T-AIS had similar PI, PT, and SS values when compared with the age-matched healthy girls. There were significant differences in pelvic morphology between Chinese and white girls with AIS. These results suggest that race may influence an individual's spinopelvic morphology. Although we have shown that the TK could affect LL through the upper arc of the LL directly, the evaluation of the thoracolumbar morphology of T-AIS before surgery is important for surgical planning.
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Comparative Study
Biomechanical comparison of occiput-C1-C2 fixation techniques: C0-C1 transarticular screw and direct occiput condyle screw.
In vitro human cadaveric biomechanical study. ⋯ The C0-C1 transarticular screw technique and direct occipital condyle screw with C1 lateral mass screw technique can be salvage fixation methods when occipital plate fixation is not feasible.
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Epidemiological total population study based on a prospective follow-up cerebral palsy (CP) registry. ⋯ The incidence of scoliosis increased with GMFCS level and age. Observed variations related to CP subtype were confounded by the GMFCS, reflecting the different distribution of GMFCS levels in the subtypes. Follow-up programs for early detection of scoliosis should be based on the child's GMFCS level and age.
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Prospective trial of virtual endoscopy in spinal surgery. ⋯ Virtual endoscopy of the spine may be useful to surgeons for diagnosis, preoperative planning, and postoperative assessment by obviating the need to mentally construct a 3-dimensional picture of the spinal canal from 2-dimensional computed tomographic scans.