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Safe and rapid contouring of fibro-osseous lesions in the orbital area using navigation with minimally invasive cranial bone registration

Published online by Cambridge University Press:  23 February 2015

K Kamizono
Affiliation:
Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
S Yoshida
Affiliation:
Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
B Cho
Affiliation:
Department of Advanced Medical Initiatives, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
N Matsumoto*
Affiliation:
Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
J Fukushima
Affiliation:
Department of Otorhinolaryngology and Head and Neck Surgery, Fukuoka, Japan, Plastic and Reconstructive Surgery, Japanese Red Cross Fukuoka Hospital, Fukuoka, Japan
M Jinnouchi
Affiliation:
Division of Fixed Prosthodontics, Faculty of Dental Sciences, Kyushu University, Fukuoka, Japan
R Ouchida
Affiliation:
Division of Fixed Prosthodontics, Faculty of Dental Sciences, Kyushu University, Fukuoka, Japan
M Sawatsubashi
Affiliation:
Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
M Hashizume
Affiliation:
Department of Advanced Medical Initiatives, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
S Komune
Affiliation:
Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
*
Address for correspondence: Nozomu Matsumoto, Graduate School of Medical Sciences, Department of Otorhinolaryngology, Kyushu University, Fukuoka, Japan Fax: +81 92 642 5685 E-mail: matsunozo@med.kyushu-u.ac.jp

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.

Method:

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.

Information

Type
Main Articles
Copyright
Copyright © JLO (1984) Limited 2015 

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