Median scores for pain ( 4 cm for the operative group and 1.5 cm for the nonoperative group ; p = 0.003 ) , ODI scores ( 20 for the operative group and 2 for the nonoperative group ; p < 0.001 ) and Roland and Morris scores ( 7 for the operative group and 1 for the nonoperative group ; p = 0.001 ) were all significantly better in the group treated nonoperatively .