CT-guided injection of ozone and collagenase in treatment of far lateral lumbar intervertebral disc herniation

Objective To study the clinical therapeutic effect of CT-guided injection of ozone and collagenas in the treatment of far lateral lumbar intervertebrnl disc herniation.Methods All 72 patients with far lateral lumbar intervertebrnl disc herniation were injected 10-40 ml of 60 μg/ ml ozone under the guidance of CT.The needle punctured through the inner margin of diapophysis and reached intervertebral disc.10-40 ml zone was injected Then the needle was pulled back at lateral crypt fossa;600-1 200 units collagenase was injected.Results The therapeutic effect during 3-6 month after operation were observed and evaluated according to Macnab criteria,and the best,good,and poor response rates were 44.5%,45.8%,and 9.7%,respectively.Conclusions Operation under CT-guidance is safe and accurate.The injection of ozone combined with collagenase in far lateral lumbar intervertebral disc herniation is a minimally invasive and effective method.