Spine
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A cross-sectional survey of 481 children aged 8-10 years and 325 adolescents aged 14-16 years obtained through a proportional two-stage cluster sample of children living in Odense, Denmark. ⋯ There is no obvious association between the objectively measured level of physical activity and back pain in children and adolescents. Simple self-reported levels of physical activity and inactivity cannot be used meaningfully on young people in back pain research.
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Comparative Study
Electromagnetic field-based image-guided spine surgery part two: results of a cadaveric study evaluating thoracic pedicle screw placement.
Human cadaveric. ⋯ Our study has shown that EMF image-guided thoracic pedicle screw placement results in a similar incidence of safely placed screws as does conventional fluoroscopy. When set-up time and image-capture time were factored in for image guidance, the average time to insert a pedicle screw was equal for both techniques. The use of EMF image guidance significantly reduced fluoroscopic time and thus radiation exposure per screw compared with conventional fluoroscopic techniques.
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Comparative Study
Electromagnetic field-based image-guided spine surgery part one: results of a cadaveric study evaluating lumbar pedicle screw placement.
Human cadaveric. ⋯ Our study has shown that when EMF tracking was used for image-guided lumbar pedicle screw placement, accuracy was improved and the incidence and degree of cortical perforations that may place neurovascular structures at risk was also reduced. Current system requirements for set-up and image acquisition, however, do add time to the procedure, and when factored in, do not yet result in a decrease in the use of fluoroscopy or screw insertion time.