Table 3

Mean pain scores of patients at different time points.

Time PointPosterolateral
Approach (n = 31)		Posterior Parasagital
Approach (n = 40)		 P Value
Baseline NRS7.52 ± 1.217.43 ± 1.030.738
NRS at 3 mo2.65a ± 1.082.77a ± 1.100.620
NRS at 12 mo4.48b ± 1.414.55b ± 1.150.833

  • Note: Data expressed as the mean ± SD.

  • aSignificant different with baseline value where P < 0.001.

  • bSignificant different with baseline value where P < 0.05.

  • NRS, numerical rating scale.