IMProVe 2011 - Proceedings

Engineering Methods in Medicine
Innovative design of customized surgical devices
for mandibular rehabilitation
M. Fantini (a), F. De Crescenzio (a), L. Ciocca (b)
(a) Second Faculty of Engineering, University of Bologna
(b) Department of Oral Science, University of Bologna
Abstract:
Purpose:
Design and manufacturing of a customized surgical device composed by a cutting guide
and a bone plate to guide osteotomies according to virtual pre-operative planning and
support the following mandibular reconstruction.
Method:
Pre-operative computed tomography (CT) scan data of the pilot study (mandible affected
by ameloblastoma) are elaborated to produce a virtual surgical plan including osteotomy
sites, entity of bone resection and therefore reconstruction. STL files are produced for a
cutting guide and a bone plate. The cutting guide and the bone plate of the device are
finally constructed by Direct Metal Laser Sintering.
Result:
An innovative customized surgical device (cutting guide + bone plate) is finally developed
to assist the two steps mandibular rehabilitation (resection and reconstruction). The
surgical device is ready to use for surgery and do not need any further manual operations
intraoperatively.
Discussion & Conclusion:
This pilot study using CAD-CAM customized cutting guides and reconstructive bone plates
for mandibular rehabilitation may represent an innovative viable way to better reproduce
the patient’s anatomical contour of the mandible.
Keywords: Computed Tomography, 3D Reconstruction, Computer Aided Design, Rapid
Prototyping, Direct Metal Laser Sintering.
Corresponding Author: Massimiliano Fantini
Tel.: +39 0543 374437
Fax.: +39 0543 374444
e-mail: massimiliano.fantini@unibo.it
Address: Università di Bologna, Seconda Facoltà di Ingegneria, via Fontanelle 40, 47121 Forlì (FC).
June 15 th – 17 th , 2011, Venice, Italy
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IMProVe 2011 - Proceedings