一种下颌手法操作技术在减少颞下颌关节盘永久性移位方面的疗效。
Efficacy of a mandibular manipulation technique in reducing the permanently displaced temporomandibular joint disc.
作者信息
Kurita H, Kurashina K, Ohtsuka A
机构信息
Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan.
出版信息
J Oral Maxillofac Surg. 1999 Jul;57(7):784-7; discussion 788. doi: 10.1016/s0278-2391(99)90814-5.
PURPOSE
The purpose of this study was to determine whether disc reduction occurred in patients with closed lock after mandibular manipulation (MM) and to analyze the factors that influenced the result.
PATIENTS AND METHODS
Two hundred fifteen patients with closed lock received MM. Of these, 74 patients (79 joints) were assessed by means of magnetic resonance imaging (MRI) for disc reduction. The results of the MRI were compared with the findings from the clinical and radiographic examinations.
RESULTS
According to the MRI assessment, only 18% (14 of 79) of the joints had successful disc reduction. The unsuccessfully treated joints had severe joint pain, disc displacement, condylar bone change, and disc deformity.
CONCLUSIONS
The results of this study suggest that successful reduction of the disc by MM is rare. They also suggest that MM is least effective in the advanced stages of internal derangement, when the disc becomes deformed.
目的
本研究的目的是确定下颌手法复位（MM）后闭锁患者的关节盘是否复位，并分析影响结果的因素。
患者与方法
215例闭锁患者接受了MM治疗。其中，74例患者（79个关节）通过磁共振成像（MRI）评估关节盘复位情况。将MRI结果与临床和影像学检查结果进行比较。
结果
根据MRI评估，只有18%（79个中的14个）的关节成功实现关节盘复位。治疗未成功的关节存在严重关节疼痛、关节盘移位、髁突骨质改变和关节盘变形。
结论
本研究结果表明，MM成功复位关节盘的情况很少见。研究还表明，当关节盘变形时，MM在颞下颌关节内紊乱晚期的效果最差。
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