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 | Dailey, Andrew T.; Brodke, Darrel S. | Comparison of computerized tomography and direct visualization in thoracic pedicle screw placement | Object. To validate computerized tomography (CT) scanning as a tool to assess the accuracy of thoracic pedicle screw placement, the authors compared its accuracy with that of direct visualization in instrumented cadaveric spine specimens. Methods. A grading scale was devised to score the placement... | Computerized tomography; Direct visualization; Thoracic pedicle screw; Pedicle; Thoracic spine | 2002 |