Group @ : At @ week follow-up , @ patients ( @ % ) reported no pain , @ ( @ % ) reported moderate pain , and @ ( @ % ) intense pain ; @ month after the procedure , @ patients ( @ % ) had no pain , @ ( @ % ) complained of moderate pain , and @ ( @ % ) of severe pain ; @ year after surgery , @ patients ( @ % ) had constant pain , and two of them were re-admitted for surgery .