Abstract
Reduction of intracapsular condylar fractures is difficult, so we have based our technique
on preoperative simulation using computer-aided design (CAD), which has proved useful
in other surgical specialties. We have treated 11 patients with intracapsular condylar
fractures. Before the operation the procedure was shown on the computer using a three-dimensional
simulation system. The relation between the stump and the fragment of the condyle,
and assessment of the position and the size of the screw, were made preoperatively
to obtain a perfect fit. The displaced fragment was reduced by elevators, and fixed
with a bicortical screw through a minimised preauricular incision under general anaesthesia.
The fragments and the location of the screws were similar on the preoperative simulation
and on the postoperative computed tomographic (CT) scan. The reduction and fixation
of the fracture showed a perfect fit on the same view in the preoperative CAD simulation
in the Mimics 10.01 software and postoperatively. Postoperative clinical examinations
showed good occlusion and satisfactory mouth opening. Two patients had temporary paralysis
of the occipitofrontalis muscle that recovered within 3 months. All patients regained
normal mandibular movements and had short and invisible scars at 6 months’ follow
up. The technique of CAD simulation could help to improve the accuracy during open
treatment for intracapsular condylar fractures.
Keywords
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Article info
Publication history
Published online: April 04, 2012
Accepted:
March 11,
2012
Identification
Copyright
© 2012 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.
