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Table 2 Pain response (top 5 rows) and development of facial numbness post treatment (bottom 3 rows) at last follow-up

From: Refractory trigeminal neuralgia treatment outcomes following CyberKnife radiosurgery

BNI pain intensity scale Number of patients (%)  
BNI I 2 (8)  
BNI II 4 (16)  
BNI III 12 (48)  
BNI IV 3 (12)  
BNI V 4 (16)  
BNI facial numbness score Number of patients pretreatment (%) Number of patients posttreatment (%)
BNI I-II 20 (80) 18 (72)
BNI III 2 (8) 5 (20)
BNI IV 3 (12) 2 (8)