Maxillofacial Plastic and Reconstructive Surgery

  • Volume 38
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  • Pages.24.1-24.7
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  • 2016
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  • 2288-8101(pISSN)
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  • 2288-8586(eISSN)
Korean Association of Maxillofacial Plastic and Reconstructive Surgeons (대한악안면성형재건외과학회)
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Characteristics of temporomandibular joint structures after mandibular condyle fractures revealed by magnetic resonance imaging

  • Kim, Bong Chul (Department of Oral and Maxillofacial Surgery, Daejeon Dental Hospital, Wonkwang University College of Dentistry) ;
  • Lee, Yoon Chang (Department of Oral and Maxillofacial Surgery, Daejeon Dental Hospital, Wonkwang University College of Dentistry) ;
  • Cha, Hyung Seok (Department of Oral and Maxillofacial Surgery, Daejeon Dental Hospital, Wonkwang University College of Dentistry) ;
  • Lee, Sang-Hwy (Department of Oral and Maxillofacial Surgery and Oral Science Research Center, College of Dentistry, Yonsei University)
  • Received : 2016.03.04
  • Accepted : 2016.04.13
  • Published : 2016.12.31
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Abstract

Background: This study aimed to evaluate the structural changes of temporomandibular joint immediately after condylar fractures with magnetic resonance imaging (MRI). Method: We evaluated 34 subjects of condylar fractures with MRI. The position, shape, and signal intensity of the condyle, disc, and retrodiscal tissue were analyzed with MR images. Results: Immediately after trauma, the disc was displaced with the fractured segment in almost all cases. And, the changes of signal intensity at the retrodiscal tissue were found but less related to the degree of fracture displacement. And, the high signals were observed almost at all fractured joint spaces and even at some contralateral joints. Conclusions: The displaced disc as well as the increased signal intensity of the joint space, condylar head, and retrodiscal tissue demands more attention to prevent the possible sequela of joint.

Keywords

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