Title: Image-based planning and validation of C1-C2 transarticular screw fixation using personalized drill guides
Authors: Martens, Kirsten ×
Verstreken, Kris
Van Cleynenbreugel, Johan
Van Brussel, Karel
Goffin, Jan
Marchal, Guy
Suetens, Paul #
Issue Date: 1999
Publisher: Springer-verlag berlin
Series Title: Medical image computing and computer-assisted intervention, miccai'99, proceedings vol:1679 pages:860-867
Abstract: Posterior transarticular spine fusion is a surgical procedure used to stabilize the cervical bodies Cl and C2. Currently, spine. screws are used most frequently, according to the procedure of Magerl. As the anatomy is rather complex and the view is limited, this procedure has a high risk factor. Thus we present and validate a planning system for cervical screw insertion based oil preoperative CT imaging. It allows a neurosurgeon to interactively determine the desired position of the cervical screws, based on appropriate and in real-time calculated reslices through the preoperative CT data. Guided by this information, a personalized mechanical drill guide is produced. The system is validated by five cadaver experiments. Based on the preoperative planning, screws are inserted through the drill guide. A semi-automatic technique is used to extract the screw locations from the postoperative images. The deviations of the axes of the planned and the inserted screws are determined in this way. We have observed that the drill guides are not yet stable enough to cope with the drilling forces that they are subjected to. As a result, they tend to displace. However, most of the inserted screws were judged to be adequately placed. No vascular compromise nor invasion of the spinal canal was observed.
ISSN: 0302-9743
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Radiology
Associated Laboratories - miscellaneous (-)
ESAT - PSI, Processing Speech and Images
Biomechanics Section
Research Group Experimental Neurosurgery and Neuroanatomy
× corresponding author
# (joint) last author

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