Pasqual Primo Guilherme Vargas, Poluha Rodrigo Lorenzi, Setogutti Ênio Tadashi, Grossmann Eduardo
Department of Dentistry, Faculty of Medicine, Federal University of Rio Grande do Sul , Porto Alegre, RS, Brazil.
Department of Dentistry, State University of Maringá , Maringá, PR, Brazil.
Cranio. 2020 Jul;38(4):256-263. doi: 10.1080/08869634.2018.1511266. Epub 2018 Aug 30.
To evaluate joint effusion and positioning of the articular disc through magnetic resonance imaging (MRI) before and after two different arthrocentesis techniques.
Twenty-six patients with dislocation of the articular disc without reduction (ADDwoR) were included and randomly divided into two groups: single needle arthrocentesis with distention of the upper compartment of the TMJ (A1) and conventional arthrocentesis with 2 needles (A2).
A statistically significant difference was observed between the different effusion categories ( = 0.009). No differences were found comparing both treatment modalities concerning the position of the mandibular condyle and the articular disc.
Conventional arthrocentesis was able to change the effusion variable, whereas the single needle arthrocentesis was not. Both techniques were responsible for altering the position of the mandibular head or the disc-head complex, projecting them to a more anterior position related to the increase in the final maximum interincisal distance.
通过磁共振成像（MRI）评估两种不同关节穿刺技术前后的关节积液及关节盘位置。
纳入26例关节盘不可复性移位（ADDwoR）患者，随机分为两组：颞下颌关节上腔扩张单针关节穿刺组（A1）和传统双针关节穿刺组（A2）。
不同积液类别之间观察到统计学显著差异（P = 0.009）。在比较两种治疗方式在下颌髁突和关节盘位置方面未发现差异。
传统关节穿刺能够改变积液变量，而单针关节穿刺则不能。两种技术均能改变下颌头或盘 - 头复合体的位置，使其相对于最终最大切牙间距离的增加向前移位。
