design and construction of a computer-assisted device applicable for accurate pedicle screw placement in spinal fusion surgery

The purpose of this study is to develop a new surgeon assistant device applicable in open spinal fusion surgery to improve the accuracy of the entry point for pedicle screw insertion position. we developed a new device named surgeon assistant pedicle detector (sa_ped). sa_ped detects and shows the accurate entry point for pedicle screw insertion to the surgeon, by using preoperative planning, registration and tracking phases. the tests were made by eight operators and each of them on five vertebrae with two holes. the results show that the average position error is 0.52±0.26mm. repeatability and reproducibility of device is also reported which is impressive. the device is also independent of the operator and has same result for all operators. considering that maximizing the accuracy, increases costs exponentially, so the device is cost effective in comparison to other expensive robotic and navigation systems and greatly reduces the number of errors. the device also occupies little space in the operating room and is easy to learn for the surgeon to use it.

design and construction of a computer-assisted device applicable for accurate pedicle screw placement in spinal fusion surgery

the purpose of this study is to develop a new surgeon assistant device applicable in open spinal fusion surgery to improve the accuracy of the entry point for pedicle screw insertion position. we developed a new device named surgeon assistant pedicle detector (sa_ped). sa_ped detects and shows the accurate entry point for pedicle screw insertion to the surgeon, by using preoperative planning, registration and tracking phases. the tests were made by eight operators and each of them on five vertebrae with two holes. the results show that the average position error is 0.52±0.26mm. repeatability and reproducibility of device is also reported which is impressive. the device is also independent of the operator and has same result for all operators. considering that maximizing the accuracy, increases costs exponentially, so the device is cost effective in comparison to other expensive robotic and navigation systems and greatly reduces the number of errors. the device also occupies little space in the operating room and is easy to learn for the surgeon to use it.