Comparisons of long-term postoperative complications between CRF and DCRF

Complication Postoperative 3 mo Postoperative 6 mo Postoperative 1 yr Postoperative 2 yr
CRF DCRF CRF DCRF CRF DCRF CRF DCRF
Numbness
Yes 19 17 18 17 16 16 8 13
No 11 2 12 2 14 3 22 6
Incidence rate (%) 63.33 89.48 60.00 89.48 53.33 84.21 26.67 68.42
P value 0.043 0.026 0.027 0.004
Abdominal distension
Yes 21 12 16 9 13 7 9 6
No 9 7 14 10 17 12 21 13
Incidence rate (%) 70.00 63.33 53.33 47.37 43.33 36.84 30.00 31.58
P value 0.619 0.684 0.652 0.907

Significant differences were noted in the incidence of numbness at each time point between the two groups, P(3month) = 0.043, P(6month) = 0.026, P(1 year) = 0.027, P(2 year) = 0.004. Whereas no significant difference was noted in the incidence of abdominal distension between the two groups, P(3month) = 0.619, P(6month) = 0.684, P(1 year) = 0.652, P(2 year) = 0.907.

CRF: radiofrequency thermocoagulation, DCRF: double neddles radiofrequency thermocoagulation.

Korean J Pain 2022;35:114~123 https://doi.org/10.3344/kjp.2022.35.1.114
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