Table 1.

Demographic information for patients

Characteristic
Age, years	26.17 ± 11.20 (12~50)
Gender, male/female	14/21
The average time of pain	19.3 (1~60) months
Side (left/right)	16/19
Follow-up duration, months	41.06 ± 18.55 (10–78)

Data presented as means ± SD, or n patients