A study recently published in The Spine Journal examines how three dimensional simulation can impact resident training.
The Cervical Spine Research Society provided $12,000 for researchers to examine how a Magerl lateral mass screw trajectory from C3-7 simulation on cadavers using a navigated drill guide without feedback as to the actual trajectory within the bone made an impact on their outcomes. One group of trainees did not receive training on the simulation; a second group received the 3D navigational feedback as to the intended drill trajectory on the sawbones; a third group received 3D feedback as to the intended drill trajectory on the cadavers.
The researchers found:
• The difference between the FinalTest and Baseline1 in the control group was 2.4 degrees, suggesting regression.
• The difference was -8.2 degrees for the sawbone group, suggesting improvement.
• The difference was -7.2 degrees in the cadavers group, also suggesting improvement.
• The difference between the aggregate sum angle for the control group and the group that received 3D feedback was statistically significant.
"Training with 3D navigation significantly improved the ability of orthopedic residents to properly drill simulated lateral mass screws," concluded the study authors. "As such, training with 3D navigation may be a useful adjunct in resident surgical education."