Computer-assisted spine surgery: a technique for accurate transpedicular screw fixation using CT data and a 3-D optical localizer.

S Lavallée; P Sautot; J Troccaz; P Cinquin; P Merloz

doi:10.1002/(sici)1522-712x(1995)1:1<65::aid-igs10>3.0.co;2-7

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Computer-assisted spine surgery: a technique for accurate transpedicular screw fixation using CT data and a 3-D optical localizer.

S Lavallée·P Sautot·J Troccaz·P Cinquin·P Merloz

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Abstract

The computer-assisted spine surgery system presented in this paper follows the basic ideas which have been developed for computer-assisted medical interventions (CAMI) in our lab since 1985. There are three steps to insert a linear tool inside vertebral pedicles. First, the surgeon defines an optimal trajectory on pre-operative computed tomography. Second, this trajectory is reported in the operating room coordinate system using an intra-operative sensor and a registration algorithm. Third, a guiding system helps the surgeon follow the selected trajectory. In this paper, we present an implementation of this method that uses only a 3-dimensional optical localizer. Results on cadaver specimens and on the first seven patients are presented.

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Bone Screws Computer Graphics Computer Simulation Humans Image Processing, Computer-Assisted In Vitro Techniques Spine Surgical Instruments Therapy, Computer-Assisted Tomography, X-Ray Computed Journal Article

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S Lavallée, P Sautot, J Troccaz, P Cinquin, P Merloz. 1995. Computer-assisted spine surgery: a technique for accurate transpedicular screw fixation using CT data and a 3-D optical localizer.. https://doi.org/10.1002/(sici)1522-712x(1995)1%3A1%3C65%3A%3Aaid-igs10%3E3.0.co%3B2-7

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