原发性三叉神经痛的治疗方法很多，但效果均不够理想。1994年以来，我科开展了上颌窦后壁开窗上颌神经高位撕脱术治疗三叉神经第二支疼痛，取得了良好的治疗效果，现报道如下。l临床资料原发性三叉神经痛病人4例，均为单侧上颌支单发，且眶下神经撕脱术后症状无明显改善者；其 There are many ways to treat primary trigeminal neuralgia, but the effects are not satisfactory. Since 1994, our department has carried out maxillary sinus posterior wall fenestration maxillary high avulsion in the treatment of the second trigeminal nerve pain, and achieved good therapeutic effect, are reported below. l clinical data of patients with primary trigeminal neuralgia in 4 patients, all unilateral maxillary branches were single, and no significant improvement in symptoms after avulsion of the infraorbital nerve; its