PRE-SURGERY SCAN UPLOADED
The patient’s CT data is uploaded into the PathKeeper system.
SURGERY PLANNING ON WORKSTATION
The system enhances the CT scan using state-of-the-art proprietary software developed specifically for spinal procedures. This enables the surgeon to review the anatomy and make a more accurate and quantitative decision as to how to perform the surgery. To ensure precise planning, the platform is equipped with pre-operative and intra-operative implant planning and cloud sharing between staff (including remote specialists).
SET UP & REGISTRATION
The operating tools are equipped with markers and undergo a quick calibration process to ensure accurate coverage and tracking throughout the surgery. This set up is significantly shorter than other available navigation systems – a matter of seconds versus minutes.
Once the patient is prepped and the target anatomy is exposed, the 3D camera captures a surface scan. A registration process is then performed so that the surgeon can verify the CT data is accurately matched to the surface data. The system can take 3D scans continuously and update the registration in accordance with the surgeon’s needs.
Once the patient is prepped, the surgeon performs an additional 30 second registration process to verify that the 3D camera captures the scene correctly and matches the CT or MRI data to the patient’s anatomy. The system consistently takes 3D scans and continuously updates the registration.
NAVIGATION & IMPLANT INSERTION
The 3D camera continuously tracks the patient’s anatomy and the movement of the surgical tools. Using the PathKeeper software, it corrects the anatomical map multiple times per second to accurately reflect the operative field. The system is unique since it tracks each vertebra independently, not just the patient reference marker, making it immune to spinal movement due to surgical work (e.g. cage insertion, retraction, etc.). Furthermore, the system uses NIR light which is unhindered by the surgical illumination and does not interfere with the surgeon’s work.
The navigation system guides the surgeon throughout the procedure and provides real-time feedback on the location and trajectory of the surgical tools. Once the location of the pedicle screw has been pre-planned, the system generates a superimposed image of the planned placement on the CT scan and guides the physician to align the navigated screw on the preoperatively planned one.