Table 1. Demographic Characteristics.

Variable	Anteroposterior group (n = 25)	Oblique group (n = 22)	p-value*
Age (yr)	45 ± 5.4 (33–54)	43.8 ± 4.7 (35–52)	0.43
Sex (male:female)	11:14	9:13
Duration of symptoms (mo)	5.6 ± 1.3 (3–7)	5.4 ± 1.3 (3–7)	0.61
NRS pain score (before procedure)	7.8 ± 0.7 (7–9)	7.7 ± 0.7 (7–9)	0.44
RMDQ score (before procedure)	18.4 ± 2.4 (15–21)	17.8 ± 1.9 (15–21)	0.36

Values are presented as mean ± standard deviation (range).

NRS: numeric rating scale, RMDQ: Roland Morris Disability Questionnaire.

^*A probability value p < 0.05 was considered statistically significant.