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A CLINICAL STUDY ON FRACTURES OF THE MANDIBULAR CONDYLES: EFFECTIVE EXTRACORPOREAL FIXATION TECHNIQUE  

Kwon, Kwang-Jun (Department of Oral and Maxillofacial Surgery, College of Dentistry, Kangnung National University)
Chung, Ji-Hun (Department of Oral and Maxillofacial Surgery, College of Dentistry, Kangnung National University)
Kim, Ji-Hyuck (Department of Oral and Maxillofacial Surgery, College of Dentistry, Kangnung National University)
Park, Young-Wook (Department of Oral and Maxillofacial Surgery, College of Dentistry, Kangnung National University)
Publication Information
Maxillofacial Plastic and Reconstructive Surgery / v.30, no.4, 2008 , pp. 359-369 More about this Journal
Abstract
Purpose: Fractures of the mandibular condyle accounts for 15% to 30% of all the mandibular fractures and lots of complications are reported. Among these complications, condylar resorption is the most important one to be taken into account. The purpose of this study is evaluating condylar resorption pattern in relation to extracorporeal fixation technique. Patients & methods: Thirty four patients with 42 mandibular condylar fractures were retrospectively examined with an average follow-up of 18.5 months (6-66 months). Male/female ratio is 27 males (7 bilateral cases) and 7 females (1 bilateral case). Applicated surgical techniques were extracorporeal fixation via submandibular approach and extracorporeal fixation via intraoral approach. We compared radiographic views of post-operative periods with that of most long term follow up in 34 operated sites respectively. Result: There were 2 generalized condylar resorption sites and 3 partial resorption sites with clinical implications. Others (29 joints) showed good healing or satisfactory adaptive state of temporomandibular joints clinically. Radiologically, signs of partial condylar resorption and/or osteoarthrosis were diagnosed in 11 patients. But, 8 out of the 11 patients didn't show significant clinical symptoms, which means successful adaptive remodeling of the surgically located condylar head. Conclusion: From the above results, intentional ramal osteotomy, temporary detachment of the fractured condyle and extracorporeal fixation technique seems to be effective and useful in those cases of condylar fractures in which reduction of the dislocated condyle is very difficult or virtually impossible.
Keywords
Fractures of mandibular condyle; Extracorporeal fixation; Condylar resorption pattern;
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