Purpose: To evaluate the clinical results of primary trigeminal neuralgia treated by RFT and investigate the methods to manage complications.

Methods: 152 cases of primary trigeminal neuralgia were collected from 2001 to 2004, a retrospective study was undertaken to analyze the clinical characters such as effective rate, ineffective rate and the rate of complications of patients treated with RFT.

Results: The average age of the 152 cases was 48.9 years old, the rate of male to female was 1:1.3. The effective rate of primary trigeminal neuralgia treated with RFT was 94.1%, the ineffective rate was 2.6%;another 3.3% cases gave up or altered to other methods, the rate of complications was 15.8%.

Conclusions: RFT is an effective method to treat primary trigeminal neuralgia with few severe complications and low mortality rate, which can save the sense of touch partly. Recurrent cases can be retreated with RFT.

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