An Eminoplasty Technique Without Fixation For Temporomandibular Joint Chronic Recurrent Dislocation

TAOMS 28. ULUSLARARASI BİLİMSEL KONGRESİ, Antalya, Türkiye, 14 - 18 Kasım 2021, cilt.28, sa.1, ss.152

􀁄􀆵􀅚􀆐􀅝􀅶􀀃􀀄􀆌􀄚􀅦􀄕􀍕􀀃􀀷􀆌􀄞􀅵􀀃􀀧􀆺􀅯􀅯􀄞􀆌􀄐􀅝􀍕􀀃􀀑􀄞􀆌􀅝􀇀􀄂􀅶􀀃􀀘􀄞􀅶􀅝􀇌􀍕􀀃􀁗􀅽􀇇􀇌􀄂􀅶􀀃􀀑􀅽􀇌􀅬􀆵􀆌􀆚

Ankara University, Faculty of Dentistry, Maxillofacial Surgery Department, Ankara

Objective: Dislocation of the temporomandibular joint (TMJ) is unilateral or bilateral displacement of the mandibular condyle anterior

and superior to the articular eminence. If dislocation occurs as a chronic, recurrent or protracted condition, surgery may be indicated.

Chronic recurrent dislocation (CRD) of TMJ has a rare incidence, and there can be anatomic predisposition to dislocation. In such

predisposed individuals, yawning, vomiting, extremes of masticatory effort or laughing may precipitate eluxation. The objective of the

study is to present a case of bilateral chronic recurrent dislocation of TMJ with an eminoplasty technique without fixation.

Case Presentation: A 41 years old-female patient was referred to the oral and maxillofacialsurgery clinic with recurrent dislocation of

the TMJ. As a result of clinical and radiological examination, bilateral eminoplasty surgery was decided. Surgery was performed via the

conventional preauricular approach. The dissection was proceeded and zygomatic arch and eminence was exposed. An oblique

osteotomy was carried out in the eminence with osteotomes and the cut was extended medially to create a green stick fracture. The

wedge-shaped graft obtained from the symphysis was placed in the split line of the eminence.

Conclusion: Eminectomy is acceptable alternative in the treatment of the patients with chronic recurrent dislocation who have damage

on their eminences. On the other hand, after eminectomy, it is difficult to recreate a satisfactory eminentia;therefore, eminoplasty

may be the best choice. The aim of the eminoplasty technique used in this case is to reduce the cost, shorten the operation time with

obtain satisfactory results.

Keywords: chronic dislocation, subluxation, hypermobility, eminoplasty