Lee Peggy P, Stanton Alexander R, Hollender Lars G
Assistant Professor and Assistant Program Director, Oral and Maxillofacial Radiology Residency Program, Department of Oral Medicine, University of Washington, Seattle, WA.
Dental Student, Department of Oral Medicine, University of Washington, Seattle, WA.
Oral Surg Oral Med Oral Pathol Oral Radiol. 2017 Apr;123(4):502-507. doi: 10.1016/j.oooo.2016.12.008. Epub 2016 Dec 29.
Research using magnetic resonance imaging analysis has shown that internal temporomandibular joint derangement is associated with significantly greater horizontal condylar angle. However, the association between osteoarthritic (OA) bony changes as shown on computed tomography and horizontal condylar angle has never been evaluated.
To investigate the relationship between mandibular condylar angle and OA degenerative changes.
This is a retrospective study using cone beam computed tomography images and reports from 60 patients with unilateral OA degenerative changes and 43 control patients with no OA-affected joints.
Condylar angles in the joints of control patients and the unaffected joints in OA patients were not significantly different. The mean horizontal condylar angle in the unilaterally OA-affected joints (29.5° ± 10.5°) was larger than in the contralateral unaffected joints (22.5° ± 7.7°) (P < .001). In the OA-affected joints, flattening and erosion of the articular eminence was associated with a greater condylar angle (P < .05).
Moderate to severe degenerative temporomandibular joint change is associated with greater horizontal condylar angle.
使用磁共振成像分析的研究表明，颞下颌关节内紊乱与髁突水平角显著增大有关。然而，计算机断层扫描显示的骨关节炎（OA）骨质改变与髁突水平角之间的关联从未得到评估。
研究下颌髁突角与OA退行性改变之间的关系。
这是一项回顾性研究，使用锥形束计算机断层扫描图像以及60例单侧OA退行性改变患者和43例无OA受累关节的对照患者的报告。
对照患者关节以及OA患者未受累关节的髁突角无显著差异。单侧OA受累关节的平均髁突水平角（29.5°±10.5°）大于对侧未受累关节（22.5°±7.7°）（P<.001）。在OA受累关节中，关节结节的扁平及侵蚀与更大的髁突角相关（P<.05）。
中度至重度颞下颌关节退行性改变与更大的髁突水平角有关。
