What are different options for reference frames in spinal navigation?
- • Spinous process clamp
- • Head holder attachments (Mayfield skull clamps)
- • Posterior superior iliac spine percutaneous pins
- • Surgical mask–based system (skin-adhesive cutaneous frame)
- • Pedicle screw clamps (for revision cases with screws in place or for second intraoperative navigation scans)
