title: Accuracy of thoracolumbar transpedicular and vertebral body percutaneous screw placement: coupling the Rosa® Spine robot with intraoperative flat-panel CT guidance--a cadaver study.
abstract: The primary objective of the present study was to evaluate the accuracy of a new robotic device when coupled with intraoperative flat-panel CT guidance. Screws (D8-S1) were implanted during two separate cadaver sessions by coupling the Rosa(®) Spine robot with the flat-panel CT device. Of 38 implanted screws, 37 (97.4 %) were fully contained within the pedicle. One screw breached the lateral cortical of one pedicle by <1 mm. The mean ± SD accuracy (relative to pre-operative planning) was 2.05 ± 1.2 mm for the screw head, 1.65 ± 1.11 for the middle of the pedicle and 1.57 ± 1.01 for the screw tip. When coupled with intraoperative flat-panel CT guidance, the Rosa(®) Spine robot appears to be accurate in placing pedicle screws within both pedicles and the vertebral body. Large clinical studies are mandatory to confirm this preliminary cadaveric report.
authors.affiliation: Department of Neurosurgery, Amiens University Hospital, Avenue Laennec, 80054, Amiens, France. lefrancm@me.com.|Laënnec Salouël, 80054, Amiens Cedex 1, France. lefrancm@me.com.|Neurosurgery Department, CHU Amiens Picardie, Salouel, France. lefrancm@me.com.
authors.forename: M
authors.initials: M
authors.lastname: Lefranc
authors.affiliation: Department of Neurosurgery, Amiens University Hospital, Avenue Laennec, 80054, Amiens, France.|Laënnec Salouël, 80054, Amiens Cedex 1, France.
authors.forename: J
authors.initials: J
authors.lastname: Peltier
mesh_terms: D006801:Humans; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging / Q000601:surgery*; D016343:Monitoring, Intraoperative; D065289:Pedicle Screws; D065287:Robotic Surgical Procedures / Q000379:methods*; D013904:Thoracic Vertebrae / Q000000981:diagnostic imaging / Q000601:surgery*; D014057:Tomography, X-Ray Computed / Q000379:methods*
keywords: Accuracy; Pedicle screw placement; Robot