Fig. 3.

Graphs showing JOA score (A), Nurick's grade (B) and Odom's criteria (C) before the surgery and during the follow-up. The improvement at 1 month and last follow-up are statistically significant compared with the preoperative values (p < 0.05, t-test). A : The mean JOA score recovery from pre-operation (pre OP) to last follow-up (f/u) was 5.1 points (from 9.1 to 14.2). B : The mean Nurick's grade recovery from pre-operation (pre OP) to last follow-up (f/u) was 1.82 (from 3.0 to 1.18). C : Cinical success rate according to Odom's criteria was increased from 75% to 91.6% through follow-up periods.