Transforaminal epidural steroid injection combined with radio frequency for the treatment of lumbar disc herniation: a 2-year follow-up

Table 1 Comparison of general data between Group T and Group TR

		Group T (n = 110)	Group TR (n = 120)	t/ (x²)	P
Male/female		47/63	53/67	(0.048)	0.826
Age (years)		64.70 ± 14.23	65.54 ± 16.06	−0.419	0.675
BMI (kg/m²)		24.48 ± 5.05	24.43 ± 5.20	0.077	0.939
Disc herniation classification	Protrusion	62	66	(0.043)	0.835
Disc herniation classification	Extrusion	48	54	(0.043)	0.835
Hospitalization time (days)		5.39 ± 1.24	5.88 ± 2.43	−1.907	0.058
Operation time (min)		29.02 ± 7.49	63.42 ± 9.79	−30.092	< 0.001*
Complication		2 (1.82%)	6 (5%)	(0.913)	0.339
Recurrence		60 (54.55%)	41 (34.17%)	(9.677)	0.002*

Notes: Numeric data were expressed as Mean ± SD and analyzed by Independent-Samples T-test. Categorical data were expressed by the number of patients (%) and were analyzed with the χ2 test. Group T: TFESI group; Group TR: TFESI combined with RF group. *P < 0.05, Group T vs Group TR
Abbreviations: BMI body mass index, VAS visual analog scale, ODI Oswestry Disability Index, TFESI transforaminal epidural steroid injection, RF radio frequency

ISSN: 1471-2474