The influence of various registration procedures upon surgical accuracy during navigated controlled petrous bone surgery

Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery
Mathias HoferGero Strauss

Abstract

The goal of this study was to investigate the dependence of surgical accuracy with a navigated controlled (NC) drill on selected registration procedures. The target registration error of the instrument and the maximum proximity to a typical high-risk structure (facial nerve) were determined within an artificial petrous bone. The studies took place in two groups: group 1, navigation bow with six integrated markers and attachment at the upper jaw, and group 2, landmark registration with four titanium microscrews. Measurement of the target registration error took place at three targets (3 titanium screws) with 20 repeated registration procedures via evaluation of the deviation between a target and the indicated position in the navigation data. For measurement of the conversion accuracy of the planned cavity, 20 petrous bone models were milled by inexperienced test subjects. The evaluation of 20 cavities was conducted via a microscope by five jurors. Registration accuracy showed a maximum deviation between the actual position achieved and the computed position in the navigation system of 1.73 mm in group 1 and 0.93 mm in group 2. In group 1, the nerve in five of 20 cases was damaged, and a maximum penetration into the nerve of 1.5 ...Continue Reading

Citations

Jun 15, 2012·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Sang-Hoon KangWonse Park
Jun 29, 2012·The International Journal of Medical Robotics + Computer Assisted Surgery : MRCAS·Harald EssigNils-Claudius Gellrich
Aug 15, 2013·Acta Oto-laryngologica·Daniele BernardeschiOlivier Sterkers
Jun 15, 2016·International Journal of Computer Assisted Radiology and Surgery·Makoto YamashitaMakoto Hashizume
Sep 22, 2018·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Daniel SchneiderLukas Anschuetz

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