[Zygomatic arch fracture extended to the glenoid fossa: a cause of TMJ pain].
BACKGROUND
Fractures of the zygomatic arch extended to the glenoid fossa are rare and seldom reported.


METHODS
A 26-year-old man with a slightly dislocated fracture of the zygoma associated with trismus, and localized pain in the right Temporo-Mandibular Joint (TMJ) on palpation, but without any condylar fracture. The craniofacial CT scan revealed a fracture of the zygoma extended to the glenoid fossa. The treatment was an intraoral reduction of the zygoma and screw fixation of the glenoid fossa lateral region.


CONCLUSIONS
The risk of delayed healing by mobilization of the bone fragments was opposed to the risk of TMJ ankylosis due to a prolonged immobilization of the joint. Osteosynthesis of the fracture was finally chosen.
Department of Oral and Cranio-Maxillofacial Science, Shanghai 9th People's Hospital, College of Stomatology, School of Medicine, Shanghai JiaoTong University, Shanghai, China; Service de chirurgie maxillo-faciale, stomatologie et chirurgie plastique de la face, NHE - CHU de Clermont-Ferrand, 63003 Clermont-Ferrand, France; UMR Inserm/UdA, U1107, Neuro-Dol, Trigeminal Pain and Migraine, faculté de chirurgie dentaire, BP 10448, 63000 Clermont-Ferrand, France. Electronic address: nphamdang@chu-clermontferrand.fr.
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Pham Dang
Service de radiologie, hôpital Gabriel-Montpied, CHU de Clermont-Ferrand, 63003 Clermont-Ferrand, France.
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Hugonnet-Boby
Service de chirurgie maxillo-faciale, stomatologie et chirurgie plastique de la face, NHE - CHU de Clermont-Ferrand, 63003 Clermont-Ferrand, France; UMR Inserm/UdA, U1107, Neuro-Dol, Trigeminal Pain and Migraine, faculté de chirurgie dentaire, BP 10448, 63000 Clermont-Ferrand, France; Faculté de médecine, Clermont université, université d'Auvergne, BP 10448, 63000 Clermont-Ferrand, France.
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Barthelemy
Department of Oral and Cranio-Maxillofacial Science, Shanghai 9th People's Hospital, College of Stomatology, School of Medicine, Shanghai JiaoTong University, Shanghai, China.
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Shi
D000328:Adult; D000844:Ankylosis / Q000175:diagnosis / Q000209:etiology; D006801:Humans; D008297:Male; D008337:Mandibular Fractures / Q000150:complications / Q000175:diagnosis; D010146:Pain / Q000175:diagnosis / Q000209:etiology; D013704:Temporomandibular Joint / Q000293:injuries*; D013705:Temporomandibular Joint Disorders / Q000175:diagnosis / Q000209:etiology; D013706:Temporomandibular Joint Dysfunction Syndrome / Q000175:diagnosis / Q000209:etiology*; D015050:Zygoma / Q000293:injuries*; D015051:Zygomatic Fractures / Q000150:complications* / Q000175:diagnosis
Articulation temporo-mandibulaire; Cavité glénoïde; Fracture; Glenoid fossa; Os zygomatique; TMJ; Zygoma