China Journal of Oral and Maxillofacial Surgery ›› 2016, Vol. 14 ›› Issue (5): 425-429.

• Original Articles • Previous Articles     Next Articles

Diagnosis and treatment of acute traumatic temporomandibular joint disc displacement in 42 consecutive patients

HE Dong-mei, YANG Xiu-juan, YANG Chi   

  1. Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; Shanghai Key Laboratory of Stomatology. Shanghai 200011, China
  • Received:2016-01-13 Online:2016-09-20 Published:2016-10-14

Abstract: PURPOSE: To explore the diagnosis, treatment results and sequela of traumatic temporomandibular joint disc displacement (ATDD) in 42 consecutive patients. METHODS: Patients diagnosed of ATDD and treated from 2010 to 2015 were recruited. Their clinical and radiologic characters were analyzed based on 3 stages: acute phase, subacute phase and chronic phase. Conservative and surgical treatment results were evaluated and compared with SPSS software package. RESULTS: Forty-two patients with 59 joints were included in the study. Among the acute and sub-acute phases patients (18 cases with 27 joints), 18.5% of the joints had condylar surface bone destruction, whereas 75% in the chronic phase (24 cases with 32 joints). Twenty-two cases with 30 joints accepted conservative treatment; among them, 90% developed osteoarthritis after a mean follow-up period of 8.8 months. Thirty-one cases with 47 joints accepted surgical treatment after injury or conservative treatment. Among them, 23 cases with 34 joints had disc reposition, 95.5% were effective (15 cases with 22 joints, mean follow-up period of 22 months). Eight cases with 13 end-stage joints accepted condylar resection and joint replacement. Their maximal incisor opening after surgery was significantly increased compared with that before surgery and conservative treatment (P<0.01). CONCLUSIONS: ATDD is easy to lead to osteoarthritis and ankylosis, disc reposition in the acute and sub-acute phases can significantly reduce the occurrence of above sequel; however, in the chronic phase, joint replacement may be necessary in selected patients.

Key words: Temporomandibular joint, Acute traumatic disc displacement, Joint ankylosis

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