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Hyperostosis as a late sequel of parasymphyseal mandibular fractures in 2 children
Peter J Anderson1, David J David
1Australian Craniofacial Unit, Women's and Children's Hospital, North Adelaide, Australia. haemro2@hotmail.com
Background:
The potential problem of growth anomalies affecting a mandible following a fracture of a mandibular condyle in childhood is well established. However, there have been no previous reports of this phenomenon affecting other fracture sites in the mandible.
Patients:
Two patients who had parasymphyseal fractures treated in childhood presented at skeletal maturity with hyperostosis at the fracture site, producing chin asymmetry in their teens.
Results:
In both cases the hyperostosis produced significant chin asymmetry without disturbance of the occlusion. Both patients were managed with corrective genioplasty.
Conclusion:
These cases reinforce the previous recommendations regarding the need for long-term follow-up of children who sustain facial fractures of the mandible, and that the protocol should be expanded to include parasymphyseal fractures as well as fractures of the condyle.
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