Relationship between radiological resorption of the posterosuperior corner of the lateral pole of the mandibular condyle and the condylar osteoarthritic/osteoarthrotic change on sagittal images of the temporomandibular joint

DOI 2 Citations 23 References
  • KURITA Hiroshi
    Department of Dentistry and Oral Surgery, Shinshu University School of Medicine
  • OHTSUKA Akiko
    Department of Dentistry and Oral Surgery, Shinshu University School of Medicine
  • UEHARA Shinobu
    Department of Dentistry and Oral Surgery, Shinshu University School of Medicine
  • SAKAI Hironori
    Department of Dentistry and Oral Surgery, Shinshu University School of Medicine
  • KURASHINA Kenji
    Department of Dentistry and Oral Surgery, Shinshu University School of Medicine

Bibliographic Information

Other Title
  • 画像所見における下顎頭外側極後上方隅角部の吸収性変化と矢状断面像における下顎頭変形性骨変化との関連

Search this article

Abstract

It is reported that an osteoarthritic/osteoarthrotic (OA) change of the mandibular condyle is frequently observed with progression of internal derangement of the temporomandibular joint (TMJ). Condylar OA change is usually evaluated using lateral X-ray images of the TMJ. Previously, we reported that resorption of the lateral pole (postero-superior aspect of the lateral pole) of the mandibular condyle (RLC) was frequently observed in joints with disk displacement. The purpose of this study is to analyze the relationship between RLC and the OA change, which was observed in lateral images of the mandibular condyle (sagittal OA change).<BR>RLC was assessed on plain radiographs of transorbital projection, in 217 TMJs out of 138 patients. Displacement of the TMJ disk and the sagittal OA change were assessed using MR imaging at the representative center depth of the TMJ.<BR>It was considered that the concurrent rate of both RLC and a sagittal OA change was 28 percent. In the joints with anterior disk displacement with reduction, RLC or a sagittal OA change tended to be observed solely. And in the joints with anterior disk displacement without reduction, both changes tended to be increasingly observed at the same time.<BR>The results of this study suggest that both RLC and a sagittal OA change may be frequently observed with advancing TMJ internal derangement. However, it is thought that RLC or a sagittal OA change develop separately by different mechanisms.

Journal

Citations (2)*help

See more

References(23)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top