我院1988年—1998年12月共做上消化道内镜检查10800例,有5例术后发生下颌关节脱位,发生率为0.046％。现将有关情况报告如下。 5例中,男4例,女1例,年龄18—55岁,平均30岁。其中患胃内结石1例,球溃疡1例,胃癌2例,胃内金属异物1例。既往有下颌关节炎者1例,但无下颌关节脱位病史。术前均未采用2％利多卡因咽部喷雾麻 Our hospital from 1988 to December 1998 a total of 10,800 cases of upper gastrointestinal endoscopy, 5 cases of mandibular joint dislocation occurred after surgery, the incidence was 0.046%. The relevant information is as follows. 5 cases, 4 males and 1 females, aged 18-55 years, an average of 30 years old. One suffering from stomach stones in 1 case, 1 case of ulcer, gastric cancer in 2 cases, 1 case of intra-gastric metal foreign body. Previous cases of mandibular arthritis in 1 case, but no history of mandibular joint dislocation. No preoperative 2% lidocaine pharyngeal spray anesthesia