Out of a series of 364 patients, 56 cases of essential trigeminal neuralgias operated upon by retrogasserian radicotomy by intradural temporal route are presented. Pointing out that we are in a period of confrontation between the great surgery, classical or micro-neurosurgery of the trigeminal nerve and the drug therapy or percutaneous surgery, the authors conclude that the indication of great surgery is restricted but has not disappeared--taking into account the good permanent results obtained (89%) and the reduced rate of failures and recurrences (11%). In the conditions of a general anesthesia with intracranial hypotension and correct surveillance the surgeon has gaine an extra security when performing these operations.
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