Clinical evaluation of modified temporomandibular joint disc anchor for disc displacement of temporomandibular joint

doi:10.19438/j.cjoms.2018.01.015

Abstract

Abstract: PURPOSE: To estimate and analyze the outcome of modified temporomandibular joint disc anchor for disc displacement of temporomandibular joint (TMJ). METHODS: Twenty-four patients (30 joints) who underwent modified temporomandibular joint disc anchor surgery based on Professor Yangchi's criteria between September 2014 and September 2016 were included in this study. The scores for preoperative maximal interincisal opening (MIO), visual analogue scale (VAS) score for pain and magnetic resonance imaging (MRI) before surgery, 6 months after surgery were compared using SPSS17.0 software package. RESULTS: MIO improved from a mean of 23.63±3.31 mm (range: 17-29 mm) preoperatively to 38.00±2.30 mm (range: 32-42 mm) 6 months postoperatively. Twenty-one of 24 patients (87.50%) had MIO≥35 mm after operation, which showed a significant improvement (P <0.05) at 6-month follow-up. VAS improved from a mean of 29.76±23.25(0-80) preoperatively to 3.71±7.91(0-50) 6 months postoperatively (P <0.05).The position of the discs in 29 of 30 (96.67%) TMJs had kept stable on MRI. There was no complication in any case. CONCLUSIONS: Modified temporomandibular joint disc anchor surgery is a reliable and effective procedure for temporomandibular joint dysfunction that improves pain and mouth opening. The position of TMJ discs postoperatively is stable on MRI.

Key words: Temporomandibular joint, Disc anchorage, Anterior disc displacement without reduction

CLC Number:

R782.6

SHEN Da, LIU Jiang-tai, LI Jian. Clinical evaluation of modified temporomandibular joint disc anchor for disc displacement of temporomandibular joint[J]. China Journal of Oral and Maxillofacial Surgery, 2018, 16(1): 69-72.

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