title: Personalized Guides for Registration in Surgical Navigation.
abstract: Personalized guides are increasingly used in orthopedic procedures but do not provide for intraoperative re-planning. This work presents a tracked guide that used physical registration to provide an anatomy-to-tracking coordinate frame transformation for surgical navigation. In a study using seven femoral models derived from clinical CT scans used for hip resurfacing, a guide characterization FRE of 0.4°±0.2°, drill-path drill-path angular TRE of 0.9°±0.4° and a positional TRE of 1.2mm±0.4mm were found; these values are comparable to conventional optical tracking accuracy. This novel use of a tracked guide may be particularly applicable to procedures that require a small surgical exposure, or when operating on anatomical regions with small bones that are difficult to track or reliably register.
authors.affiliation: School of Computing, Queen's University, Kingston, Ontario, Canada.
authors.forename: Andrew W L
authors.initials: AW
authors.lastname: Dickinson
authors.affiliation: Department of Mechanical and Materials Engineering, Queen's University, Kingston, Ontario, Canada.
authors.forename: Brian J
authors.initials: BJ
authors.lastname: Rasquinha
authors.affiliation: Department of Surgery, Queen's University, Kingston, Ontario, Canada.
authors.forename: John F
authors.initials: JF
authors.lastname: Rudan
authors.affiliation: School of Computing, Queen's University, Kingston, Ontario, Canada.
authors.forename: Randy E
authors.initials: RE
authors.lastname: Ellis
mesh_terms: D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation* / Q000379:methods*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006621:Hip Joint / Q000000981:diagnostic imaging* / Q000601:surgery*; D006801:Humans; D057285:Precision Medicine; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D025321:Surgery, Computer-Assisted / Q000295:instrumentation* / Q000379:methods; D014057:Tomography, X-Ray Computed / Q000295:instrumentation* / Q000379:methods