Match 3D 3D Oft Density: 1187
Fig. 12. Workstation screen demonstrating navigational information for the placement of a screw into the pedicle of C7.
spine, cervical corpectomy and the placement of pedicle screws into C7 (fig. 12) [3, 13-16]. While anterior cervical applications of image guidance present unique registration difficulties because of the relative lack of discreet registration points on the anterior surface of the cervical spine, sufficient navigational information can be obtained in order to improve the precision of these procedures.
Like any other computer-based technology, image-guided navigation is highly dependent on the quality of the information imported into the system. While obtaining the properly formatted CT images and having them correctly transferred to the navigational workstation is important, the critical step of image guidance is the registration process. If the surgeon takes too casual an approach to registration, inaccurate information will be displayed during intraoperative navigation.
Another important principle of image guidance is the need to correlate the navigational information with the surgeon's own knowledge of the surgical
Spine Navigation Registration
Action v Verify ♦ Trajectory
Screw Length (mm) 30
Screw Width (mm)
Was this article helpful?
Tired Having Back Pains All The Time, But You Choose To Ignore It? Every year millions of people see their lives and favorite activities limited by back pain. They forego activities they once loved because of it and in some cases may not even be able to perform their job as well as they once could due to back pain.