A case with bifid mandibular condyle causing mandibular dislocation

Abstract

Abstract. Bifid Mandibular condyle is a rare case, which is usually diagnosed after radiological examination or after physical examination of a patient who refers with temporomandibular joint disorders and pain. It is usually unilateral. A bifid mandibular condyle and mandibular dislocation were diagnosed in a 6-year-old boy who presented difficulty in closing his mouth. The patient had a history of trauma, due to a fall while running three months ago. Extracondyle was found to be located bilaterally close to the superomedial region of the zygomatic arch and was seen to be stuck at the temporal fossa.  In this case, the extracondyle pulled the real mandibular condyle to the anterior by settling at zygomas’ superomedial region. In this case, bifid mandibular condyle was the reason for mandibular dislocation.

 

Key words: Bifid mandibular condyle, mandibular dislocation, bifid condyle, temporomandibular joint 

Keywords

• Bifid mandibular condyle, mandibular dislocation, bifid condyle, temporomandibular joint

References

1. Hrdlicka A. Lower jaw: double condyles. Am J Phys Anthropol 1941; 28: 75-89.
2. Szentpetery A, Kocsis G, Marcsik A. The problem of the bifid mandibular condyle. J Oral Maxillofac Surg 1990; 48: 1254-1257.
3. Loh FC, Yeo JF. Bifid mandibular condyle. Oral Surg Oral Med Oral Pathol 1990; 69: 24-27.
4. Daniels JS, Ali I. Post-traumatic bifid condyle associated with temporomandibular joint ankylosis: report of a case and review of the literature. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2005; 99: 682-688.
5. Acikgoz A. Bilateral bifid mandibular condyle: a case report.J Oral Rehabil 2006; 33: 784-787.
6. Menezes AV, de Moraes Ramos FM, de Vasconcelos-Filho JO, et al. The prevalence of bifid mandibular condyle detected in a Brazilian population. Dentomaxillofac Radiol 2008; 37: 220- 223.
7. Miloglu O, Yalcin E, Buyukkurt M, Yilmaz A, Harorli A. The frequency of bifid mandibular condyle in a Turkish patient population. Dentomaxillofac Radiol 2010; 39: 42-46.
8. Antoniades K, Hadjipetrou L, Antoniades V, Paraskevopoulos K. Bilateral bifid mandibular condyle. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2004; 97: 535-538.

9. Hersek N, Ozbek M, Tasar F, Akpinar E, Firat M. Bifid mandibular condyle: a case report. Dent Traumatol 2004; 20: 184-186.
10. To EW. Supero-lateral dislocation of sagittally split bifid mandibular condyle. Br J Oral Maxillofac Surg 1989; 27: 107-113.
11. Allen FJ, Young AH. Lateral displacement of the intact mandibular condyle. A report of five cases. Br J Oral Surg 1969; 7: 24-30.
12. Bu SS, Jin SL, Yin L. Superolateral dislocation of the intact mandibular condyle into the temporal fossa: review of the literature and report of a case. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2007; 103: 185-189.