Evaluation of the anterior meniscal displacement with reduction by High-Resolution Ultrasonography pulsed wave Doppler mode (PWD). A pilot study

Authors : Alaa ALSAFADI, Juan Luis COBO, İvan MENÉNDEZ, Juan David MURİEL, Teresa COBO

Pages : 1-6

Doi:10.35333/ERD.2020.179

View : 16 | Download : 6

Publication Date : 2020-06-30

Article Type : Research Paper

Abstract :Introduction : The temporomandibular joint disorder insert ignore into journalissuearticles values(TMD); refers to mandibular dysfunction caused by reduced function of the primary structures that compose the temporomandibular joint insert ignore into journalissuearticles values(TMJ); or other structures related to the TMJ or by the interaction of these structures with each other. Ultrasound imaging insert ignore into journalissuearticles values(USI); can not only demonstrate soft tissue alterations but also visualize hard tissue alterations. Pulsed-wave Doppler mode is a widely used technique in the study of movable structures, particularly the vascular system. Material and Methods: 16 patients insert ignore into journalissuearticles values(32 TMJ); were included in this study, grouped in 10 women’s and 6 men’s); . Extraoral and intraoral examination of the TMJ was realized to detect anterior disc displacement with reduction. Ultrasonography high resolution examination was carried out by LOGIQ e Healthcare ® with a 16 MHz high frequency transducer. A musculoskeletal L8-18i wideband linear array was used for pulsed wave doppler mode examination. Results : Fourteen patients presented anterior disc displacement with reduction, and 2 patients presented normal disc position. When meniscal displacement is detected, PWD mode presents a distinct waveform on the timeline of the exploration. Conclusion : Pulsed-wave Doppler mode provides an advantage in USI, helping to confirm the existence of anterior disc displacement or crepitation. USI is a noninvasive technique with no radiation exposure and permits static and dynamic exploration of the TMJ with a short examination time, low cost, and no contraindications or special patient preparation.
Keywords : Temporomandibular joint, Ultrasonography, Articular disc, Disc displacement, PWD mode, Doppler