Fig. 2From: Posterior dynamic stabilization in the lumbar spine – 24 months results of a prospective clinical and radiological study with an interspinous distraction deviceResults of the scores. Data were presented for pain intensity by VAS for back (a) and for leg (b) and for functional impairment by ODI (c) and RM (d); pre-OP means preoperatively, *indicates statistical significant difference to the preoperative valueBack to article page