The Use of Customised Surgical Guide for Bilateral Inferior Mandibulectomy in a Case of Monostotic Fibrous Dysplasia
10.21315/aos2020.15.1.410
- Author:
Chong Jun Ai
1
Author Information
1. Centre of Oral and Maxillofacial Surgery, Faculty of Dentistry, Universiti Kebangsaan Malaysia, 50300 Kuala Lumpur, Malaysia
- Collective Name:Siti Salmiah Mohd Yunus; Abd Jabar Nazimi; Nordin Rifqah; Tan Huann Lan
- Publication Type:Case Reports
- Keywords:
Fibrous dysplasia;
mandible;
osteotomy;
stereolithography;
surgical guide
- From:Archives of Orofacial Sciences
2020;15(1):73-80
- CountryMalaysia
- Language:English
-
Abstract:
Fibrous dysplasia (FD) is a benign pathological condition of bone in which normal cancellous bone is
replaced by immature woven bone and fibrous tissue. Surgical recontouring aims to remove the excess
fibrous bone and achieve acceptable symmetry. Conventional surgery which depends on visual exposure
and the surgeon’s assessment during the procedure poses a great challenge in obtaining a predictable
surgical outcome especially in bilateral presentation. Recent advances in surgical technology may
overcome this challenge. Herein, we present a case of 23 years old Chinese lady who underwent bilateral
inferior mandibulectomy for monostotic fibrous dysplasia. The aims of this surgery were to recontour
the mandible symmetrically via extraoral approach while preserving the inferior alveolar nerves and
mental nerves with the aid of a surgical guide. A stereolithography model of the patient’s mandible was
produced using the computed tomography (CT) scan data in Digital Imaging and Communications in
Medicine (DICOM) format to assist in the surgery. Simulation with SurgiCase software (Materialise,
Leuven, Belgium) was utilised in creating the customised surgical guide. The autoclavable surgical guide
was manufactured by rapid prototyping technology and used intraoperatively to define the osteotomy
line for mandibular recontouring. Virtual surgical planning greatly assists surgeons to deliver a good
surgical result.
- Full text:1.2020my190.pdf
