Fig. 4From: Posterior dynamic stabilization in the lumbar spine – 24 months results of a prospective clinical and radiological study with an interspinous distraction deviceDevelopment of the iROM in degree (deg.) to the different time points. pre-OP means preoperatively, post-OP means soon after surgery, measured by the Cobb method and RSA, *indicates statistical significant difference to the initial angleBack to article page