title: Safe and rapid contouring of fibro-osseous lesions in the orbital area using navigation with minimally invasive cranial bone registration.
abstract: BACKGROUND
  Bone contouring is currently the best treatment for fibro-osseous lesions after bone growth arrest. Navigation systems available for this surgery allow intra-operative visualisation with improved cosmetic outcomes. However, conventional navigation systems using superficial skin registration cannot prevent subtle discrepancies.
  
  
  METHODS
  To address this problem, we used a non-invasive cranial bone registration that uses patient-specific dental templates to maintain exact registration. We created the preset goal using the mirror image of the unaffected side for unilateral lesions, and using images obtained before the onset of symptoms for bilateral lesions. This system achieved precise pre-operative simulation. A sound aid in the navigation system provided information regarding proximity to critical structures and to the preset goal.
  
  
  RESULTS
  We used this system to contour fibro-osseous lesions in three patients. All patients achieved good facial contours and improvement in symptoms.
  
  
  CONCLUSIONS
  This method offers a safe, rapid surgical aid in treating orbital fibro-osseous lesions.
authors.affiliation: Department of Otorhinolaryngology,Graduate School of Medical Sciences, Kyushu University,Fukuoka,Japan.
authors.forename: K
authors.initials: K
authors.lastname: Kamizono
authors.affiliation: Department of Otorhinolaryngology,Graduate School of Medical Sciences, Kyushu University,Fukuoka,Japan.
authors.forename: S
authors.initials: S
authors.lastname: Yoshida
authors.affiliation: Department of Advanced Medical Initiatives,Faculty of Medical Sciences,Kyushu University,Fukuoka,Japan.
authors.forename: B
authors.initials: B
authors.lastname: Cho
authors.affiliation: Department of Otorhinolaryngology,Graduate School of Medical Sciences, Kyushu University,Fukuoka,Japan.
authors.forename: N
authors.initials: N
authors.lastname: Matsumoto
authors.affiliation: Department of Otorhinolaryngology and Head and Neck Surgery,Fukuoka,Japan,Plastic and Reconstructive Surgery,Japanese Red Cross Fukuoka Hospital,Fukuoka,Japan.
authors.forename: J
authors.initials: J
authors.lastname: Fukushima
authors.affiliation: Division of Fixed Prosthodontics,Faculty of Dental Sciences,Kyushu University,Fukuoka,Japan.
authors.forename: M
authors.initials: M
authors.lastname: Jinnouchi
authors.affiliation: Division of Fixed Prosthodontics,Faculty of Dental Sciences,Kyushu University,Fukuoka,Japan.
authors.forename: R
authors.initials: R
authors.lastname: Ouchida
authors.affiliation: Department of Otorhinolaryngology,Graduate School of Medical Sciences, Kyushu University,Fukuoka,Japan.
authors.forename: M
authors.initials: M
authors.lastname: Sawatsubashi
authors.affiliation: Department of Advanced Medical Initiatives,Faculty of Medical Sciences,Kyushu University,Fukuoka,Japan.
authors.forename: M
authors.initials: M
authors.lastname: Hashizume
authors.affiliation: Department of Otorhinolaryngology,Graduate School of Medical Sciences, Kyushu University,Fukuoka,Japan.
authors.forename: S
authors.initials: S
authors.lastname: Komune
mesh_terms: D000328:Adult; D005260:Female; D018214:Fibroma, Ossifying / Q000601:surgery*; D005626:Frontal Sinus / Q000000981:diagnostic imaging / Q000601:surgery; D006801:Humans; D008441:Maxillary Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery*; D008875:Middle Aged; D003765:Models, Dental; D009918:Orbital Neoplasms / Q000601:surgery*; D010255:Paranasal Sinus Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery*; D025321:Surgery, Computer-Assisted / Q000379:methods*; D014057:Tomography, X-Ray Computed / Q000379:methods
keywords: Pre-operative Simulation