Fig. 2From: Minimally invasive versus conventional fixation of tracer in robot-assisted pedicle screw insertion surgery: a randomized control trialSchematic diagram of improved tracer minimally invasive fixation device: a. the side view; b. the top view; c. indicate the certain point the lower ends of the fixators intersect at. (1. the connector; 2. the groove; 3. the porous channel; 4. the fixator; 5. the slope; 6. the guide fixator; 21. the limitator)Back to article page