Table 7 Correlations between PI-LL and post-operative VAS, detailed VAS, and ODI

VAS for LBP

0.517

0.335

2.052

p = 0.045

VAS for lower extremity pain

0.577

0.348

2.321

p = 0.024

VAS for lower extremity numbness

0.639

0.360

2.417

p = 0.019

ODI

0.241

0.215

1.372

NS

p = 0.176

Detailed VAS for

0.401

0.213

1.288

NS

LBP while in motion

p = 0.204

Detailed VAS for LBP while standing

0.626

0.341

2.134

p = 0.038

Detailed VAS for

0.379

0.270

1.632

NS

LBP while sitting

p = 0.109