The Iatrogenic Fracture of the Coronoid Process of the Mandible. A Review of the Literature and Case Presentation

Abstract

An unusual case of an isolated fracture of the coronoid mandibular process is presented. The fracture was randomly discovered after a panoramic radiograph was taken for surgical purposes. There were no clinical findings or symptoms by the patient. A careful review of the literature of fractures of the coronoid process is presented, since the isolated coronoid fracture is the rarest occurrence of all facial fractures.

Risk factor analysis and idiographic features of mandibular coronoid fractures: A retrospective case–control study

“…7 ( p  < 0.001; data was not listed). Additionally, several case reports are also available on iatrogenic fractures occurring during maxillary and mandibular third molar extractions, cystectomies and sagittal split ramus osteotomies 18, 19 . Interestingly, no significant relationship existed between the different aetiologies and coronoid fractures, which are highly distinguished from other mandibular fractures.…”

Mandibular Coronoid Fractures, How Rare?

“…Similar mechanism has been proposed for the fracture of genial tubercle of the mandible. 1 The coronoid process may also sometimes fracture during the procedures like third molar extractions and sagittal split osteotomy. 2 The frequency of coronoid process fracture is reported to be 1 to 3% of all mandibular fractures and 0.6 to 4.7% of all maxillofacial fractures.…”

“…1 Coronoid fractures are the result of high velocity road traffic accidents, falls, interpersonal violence, and explosions. Clinical situations like mandibular third molar extraction and sagittal split osteotomy of mandibular ramus may lead to iatrogenic coronoid process fracture, but are rare.…”

“…Clinical situations like mandibular third molar extraction and sagittal split osteotomy of mandibular ramus may lead to iatrogenic coronoid process fracture, but are rare. 2 These fractures frequently present with restricted mouth opening and pain, which may be attributed to 4 JB Lingaraj, 5 Arjun Singh [1][2][3][4][5] Department of Oral and Maxillofacial Surgery, VK Institute of Dental Sciences, KLE University, Belgaum, Karnataka, India…”

Computed tomography in the investigation of trauma to the ventral cranium

“…Examples of fractures in 2 horses that presented with a history of head trauma, that were also not evident radiographically but were apparent on CT, are shown in ; a coronoid process fracture of the mandible and a fracture of the hamulus of the pterygoid (the hamulus forms a pulley around which the tensor veli palatine is reflected [Hillman 1975]). In man coronoid process fractures have been reported as the rarest occurrence of all facial fractures (Delantoni and Antoniades 2010) and have not previously been documented in the horse.…”