Subjective outcome scores collected throughout follow-up

Postoperation1 Week1 Month6 Months1 Year
Rest pain+1.25+1.33+1.29+1.53+1.49
Active pain+1.10+1.12+1.00+1.33+1.12
Narcotic use+0.81+0.84+0.93+0.94
  • Note:—Subjective outcome scores as compared with preoperative status: +2 indicates total improvement; +1, some improvement; 0, no change; −1, worse. Scores were calculated as described in the Methods section. Mobility and narcotic use were not determined until 1 week had passed after treatment.