目的：探讨三叉神经感觉根（TNSR）的解剖学结构，及其表层神经纤维束切断术治疗三叉神经痛（TN）的可行性。
Objective: To explore the detailed clinical anatomy of trigeminal nerve sensory root (TNSR) in order to establish a new tractotomy for the treatment of trigeminal neuralgia (TN) .
均进行了外科治疗：实施神经根减压术3 9例，感觉根切断11例。
Nerve root decompression was performed in 39 cases, and sensory radiculotomy in 11 cases.
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