Comparison of pedicle screw palcement accuracy in image-guided lumbosacral pedicle screw insertion procedures performed with dose-reduced standard 3D-fluoroscopy scans versus such with high density 3D-fluoroscopy scans - HDvsSTDScanPSInser

retrospective clinical study encompassing 548 lumbosacral image-guided procedures with 2190 inserted pedicle screws - a total of 904 pedicle screws were inserted using dose-reduced navigation scans below a threshold of 100 mGycm - 1286 pedicle screws were placed using high-density scans above 300 mGycm - no significant difference in pedicle screw insertion accuracy was found in the two groups (96.5%, and 94.7%, respectively, p˜0.11) - significantly lower 3D-radiation doses per scanned vertebral level were found in procedures using dose-reduced scans (22.78 versus 98.76 mGycm, p<0.00001)