International Journal of Oral & Maxillofacial Surgery
Volume 39, Issue 4 , Pages 388-393 , April 2010

The role of the disc in the healing of displaced subcondylar fracture in the growing period: an experimental study in rats

  • Z. Li

      Affiliations

    • Key Lab for Oral Biomedical Engineering of the Ministry of Education, Wuhan University, People's Republic of China
    • Department of Oral and Maxillofacial Surgery, College and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
    • Wei Zhang is the Co-first author; Wei Zhang and Zhi Li contributed equally to this article.
    • ,
  • W. Zhang

      Affiliations

    • Key Lab for Oral Biomedical Engineering of the Ministry of Education, Wuhan University, People's Republic of China
    • Wei Zhang is the Co-first author; Wei Zhang and Zhi Li contributed equally to this article.
    • ,
  • Z.-B. Li

      Affiliations

    • Key Lab for Oral Biomedical Engineering of the Ministry of Education, Wuhan University, People's Republic of China
    • Department of Oral and Maxillofacial Surgery, College and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
    • Zu-Bing Li is the Corresponding author.
    • Corresponding Author InformationAddress: Department of Oral and Maxillofacial Surgery, College and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan 430079, Hubei, People's Republic of China. Tel.: +86 27 87646313; fax: +86 27 87873260.

,Accepted 12 January 2010.

  • Image Result

    Animal model of medially displaced subcondylar fracture.

    Animal model of medially displaced subcondylar fracture.

  • Image Result

    Radiogram of fixed skull and angle α measurement (vertical line, mandibular midline; T, tympanic bulla).

    Radiogram of fixed skull and angle α measurement (vertical line, mandibular midline; T, tympanic bulla).

  • Image Result

    The mean values of angle α from the four groups.

    The mean values of angle α from the four groups.

  • Image Result

    Group A, abnormal union of the condyle fracture resulting in crooked condyle was observed, and the pathological changes included anamorphic condyle, disappearance of the disc structure and disorganize

    Group A, abnormal union of the condyle fracture resulting in crooked condyle was observed, and the pathological changes included anamorphic condyle, disappearance of the disc structure and disorganized arrangement of cartilage layers (HE stain, 2.0×).

  • Image Result
    The prognosis in group B was favourable, the fracture area was indistinct, exhibiting completely normal TMJ structure (HE stain, 2.0×).

    The prognosis in group B was favourable, the fracture area was indistinct, exhibiting completely normal TMJ structure (HE stain, 2.0×).

  • Image Result
    In group C the condyle fracture presented malunion with irregular callus in the fracture area (HE stain, 2.0×).

    In group C the condyle fracture presented malunion with irregular callus in the fracture area (HE stain, 2.0×).

  • Image Result
    In group D the fractured condyle was united normally, but the callus in the fracture area was undergoing remodelling (HE stain, 2.0×).

    In group D the fractured condyle was united normally, but the callus in the fracture area was undergoing remodelling (HE stain, 2.0×).

PII: S0901-5027(10)00011-1

doi: 10.1016/j.ijom.2010.01.008

International Journal of Oral & Maxillofacial Surgery
Volume 39, Issue 4 , Pages 388-393 , April 2010

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