Imaging Science in Dentistry

Korean Academy of Oral and Maxillofacial Radiology (대한영상치의학회)
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Multidetector computed tomography in preoperative planning for temporomandibular joint ankylosis: A pictorial review and proposed structured reporting format

  • Singh, Rashmi (Department of Radiodiagnosis, All India Institute of Medical Sciences) ;
  • Bhalla, Ashu Seith (Department of Radiodiagnosis, All India Institute of Medical Sciences) ;
  • Manchanda, Smita (Department of Radiodiagnosis, All India Institute of Medical Sciences) ;
  • Roychoudhury, Ajoy (Department of Oral and Maxillofacial Surgery, All India Institute of Medical Sciences)
  • Received : 2021.02.01
  • Accepted : 2021.04.21
  • Published : 2021.09.30
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Abstract

Ankylosis of the temporomandibular joint (TMJ) is a disabling disease resulting from fibrous or bony fusion of the mandibular condyle and the glenoid fossa. Early diagnosis and surgical treatment are essential to prevent facial deformity and other complications. Conventional radiography has limitations in demonstrating the true extent of ankylosis. It is important for surgeons to be aware of the size and degree of bony ankylosis in order to perform complete resection of the ankylotic mass. In addition, a detailed evaluation of the relationship with adjacent vital structures such as the internal maxillary artery, inferior alveolar nerve canal, external auditory canal, and skull base are crucial to avoid iatrogenic injury. Multidetector computed tomography (MDCT) is the current imaging modality of choice for preoperative assessments. Herein, the authors propose a structured CT reporting template for TMJ ankylosis to strengthen the value of the preoperative imaging report and to reduce the rates of intraoperative complications and recurrence.

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References

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