Emshoff Rüdiger, Moriggl Alexander, Rudisch Ansgar, Laimer Klaus, Neunteufel Nikolaus, Crismani Adriano
Department of Oral and Maxillofacial Surgery, Center of Dentistry and Oral Surgery, Innsbruck Medical University, Innsbruck, Austria.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2011 Apr;111(4):435-41. doi: 10.1016/j.tripleo.2010.05.064.
The aim of this study was to estimate whether, in patients with temporomandibular joint (TMJ) arthralgia, the magnetic resonanace imaging (MRI) findings of bilateral TMJ disk displacement without reduction (DDwoR) and/or osteoarthrosis (OA) are determinants of mandibular backward positioning and/or clockwise rotation.
Bilateral MRI of the TMJ was performed in 50 consecutive TMJ arthralgia patients to identify individuals with bilateral TMJ DDwoR and/or OA. Linear and angular cephalometric measurements were taken to apply selected criteria of mandibular backward positioning (FH to Na-Pog <84°, Na-A-Pog >5°, and SNB <75°) and clockwise rotation (FH to OP >13°, MP to FH >35°, and S-Gn to FH >64°). Logistic regression analysis was used to estimate the association between selected MRI and cephalometric parameters.
In the age- and gender-adjusted analyses, significant increases in risk of mandibular backward positioning and clockwise rotation occurred with bilateral DDwoR and OA (9.5:1; P = .040).
In patients with TMJ arthralgia the MRI parameters of DDwoR and OA seem to be important determinants of mandibular backward positioning and clockwise rotation.
本研究旨在评估在颞下颌关节（TMJ）关节痛患者中，双侧TMJ盘移位不可复（DDwoR）和/或骨关节炎（OA）的磁共振成像（MRI）表现是否为下颌后缩和/或顺时针旋转的决定因素。
对50例连续的TMJ关节痛患者进行双侧TMJ的MRI检查，以确定患有双侧TMJ DDwoR和/或OA的个体。进行线性和角度头影测量，以应用下颌后缩（FH至Na-Pog <84°，Na-A-Pog >5°，以及SNB <75°）和顺时针旋转（FH至OP >13°，MP至FH >35°，以及S-Gn至FH >64°）的选定标准。采用逻辑回归分析来评估选定的MRI参数与头影测量参数之间的关联。
在年龄和性别调整分析中，双侧DDwoR和OA会使下颌后缩和顺时针旋转的风险显著增加（9.5:1；P = .040）。
在TMJ关节痛患者中，DDwoR和OA的MRI参数似乎是下颌后缩和顺时针旋转的重要决定因素。
