顎関節内障に対する電気メス, レーザー, シェーバーを用いた関節鏡視下手術法

概要

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The purpose of this study is to evaluate the usefulness of operative arthroscopy using on electric cautery and shaver system and Yag-LASER performed in 23 cases (25 joints) of internal derangement with closed lock of the temporomandibular joint (TMJ).<BR>The patients consisted of 2 males and 23 females, with an average age of 35.3 years (15-62), and had a locking duration of 6.6 months (0.1-36) on average. Preoperatively, the average interincisal opening distance was 28.9mm (22-36), with moderate to severe arthralgia in 23 joints. Using a triangulation technique via a second puncture, diagnostic arthroscopy was performed, followed by abrasion of the intra-capsular fibrous adhesion by monopalar or LASER and extirpation of fibrous tissue by electric shaver. As a result, the postoperative interincisal opening distance averaged 40.3mm and the average improved distance of 11mm was obtained. The arthralgia recovered to painless in 12 joints, slight in 10 joints and moderate in 3 joints. According to our criteria, the surgical success rate was 92%, being exellent in 16 joints, good in 7 joints, and failure in 2 joints. In conclusion, an operative arthroscopy using these surgical instruments was thought to be extremely useful in treating an internal derangement of the TMJ.
社団法人日本口腔外科学会の論文