Arthrotomography of the temporomandibular joint

Authors:
  • RKRw Katzberg
    Rw Katzberg
  • MDMf Dolwick
    Mf Dolwick
  • CHCa Helms
    Ca Helms
  • THT Hopens
    T Hopens
  • DBDj Bales
    Dj Bales
  • GCGc Coggs
    Gc Coggs

Abstract
A series of 104 arthrotomographic examinations of the temporomandibular joint in 89 patients is described. Those patients with symptoms referable to the temporomandibular joint and not responsive to conservative methods of therapy were selected. The mean patient age was 29 years with a 3:1 female to male ratio. Operative confirmation of arthrotomographic findings was obtained in 40 joints. The arthrotomogram was consistently reliable in predicting the type of internal joint derangement. Anterior meniscus displacement without reduction, anterior meniscus displacement with reduction, and perforation of the posterior attachment of the meniscus were the most significant abnormalities encountered. Jaw locking was definitely associated with meniscus displacement without reduction and meniscus displacement with reduction. The most important pathophysiologic mechanism explaining the arthrotomographic findings seems to be incompetence of the posterior attachment of the meniscus with anterior displacement. Arthroto...

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