Article Figures & Data
Figures
- Figure 1
Evaluation of the upper thoracic costotransverse joint for assessment of extrapedicular versus transpedicular approaches. Also shown is adjustment of the pedicle screw length from 45 to 40 mm to avoid ventral breach.
- Figure 2
Optimization of pedicle screw trajectory for better pedicle fill and length. This also allows visualization of the facet joint for the avoidance of proximal facet violation and adjacent segment disease.
- Figure 3
Image-guided trajectory for lateral mass fixation in the posterior cervical spine with avoidance of the facet joints. Also shown is adjustment of the screw length from 16 to 14 mm to avoid a ventral breach. An all in-bone trajectory avoids injury to the exiting nerve root and vertebral artery.
- Figure 4
Sacroiliac joint fixation using image guidance. The top left image confirms that the trajectory is ventral enough to access the articular area of the joint. The top right shows the location of the iliac cortical density above which runs the L5 root. The bottom left picture allows the surgeon to plan for more than 1 implant while staying within the intra-articular portion of the joint. The coronal cuts seen in the bottom right can be used not only for implant planning but also for visualization of implant positioning with respect to the sacral foramina.
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