Malar/orbital/zygomatic fracture causing fracture of underlying coronoid process.

In 1 week two patients with depressed fractures of the malar/orbital/zygomatic complex presented with roentgen evidence of fractures of the underlying coronoid process caused by the transmitted impact of the malar/orbital/zygomatic fragment without direct injury to the mandible. No similar cases had been seen in the previous 12 years, and reports found in the literature stated that this type of fracture occurs in only about 2% of all mandible fractures. Conservative treatment is recommended unless there is obvious displacement.