new technique in targeting V2 under ultrasound guidance

the classical approach of V2 transcoronoin for practitioner is considered as difficult with significant failure rate with sustained V3 motor stimulation our approach infrazygomatic anterior out of plane is considered much easier in achieving pure V2 stimulation without V3 which make the thermal radio frequency 80 Celsius can be performed safely

Inclusion Criteria:above 40 severe pain normal neurological examination -

Exclusion Criteria:metastasis allergy to medication used radio frequency precautions previous failed radio frequency or microvascular decompression gamma knife coagulpathy sepsis or active infection at site of needle entry

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40 participants enrolled in the study complaining of sever TN with normal neurological examination