The comparison of efficacy and complications of coblation and radiofrequency thermocoagulation for V2/V3 idiopathic trigeminal neuralgia: a retrospective cohort study of 292 cases

Table 3 Complications except for facial numbness after surgery

Variables	RFT	Coblation	χ²	P
Oral ulcer, n(%)	5 (5.2%)	10 (6.7%)	0.236	0.627
Masticatory weakness, n(%)	23 (23.7%)	40 (26.7%)	0.271	0.603
Corneal hypoesthesia, n(%)	21 (21.6%)	36 (24%)	0.183	0.669
Hypoesthesia of temperature, n(%)	30 (30.9%)	51 (34%)	0.252	0.615
Tinnitus, n(%)	14 (14.4%)	26 (17.3%)	0.365	0.546

Complication is considered as categorical data and Pearson’s chi-square test is used to assess it

ISSN: 1471-2253