Pain Relief, Disability, and Hospital Costs After Intradiscal Ozone Treatment or Microdiscectomy for Lumbar Disc Herniation: A 24-Month Real-World Prospective Study.

: Surgery is the treatment of choice for symptomatic disc herniation after unsuccessful conservative management. This prospective study compared the impact on clinical and hospital outcomes of intradiscal ozone treatment vs. surgery (microdiscectomy/discectomy) in our clinical practice. : Intradiscal ozone treatment was offered to 70 patients with scheduled surgery because of lumbar disc herniation. Initial treatment was surgery in 38 patients and ozone infiltration in 32 patients: lumbar and sciatic pain (Visual Analog Scale), Roland-Morris Disability Questionnaire score, days of hospital admission, and direct hospital costs were recorded during 24 months of follow-up. : At 12 and 24 months, lumbar pain, sciatic pain, and Roland-Morris score decreased significantly within both groups ( < 0.001). At 24 months, compared to the initial surgery, the initial intradiscal ozone treatment showed similar clinical outcomes with significantly lower requirements of surgery (100% versus 47%, < 0.001) and lower hospital stay [median 2.5 (2-3) versus 0.5 (0-2) days, < 0.001]. Direct hospital costs were significantly lower with initial ozone treatment at 12 months ( = 0.040). : In our real-world prospective study, after 24 months of follow-up, initial intradiscal ozone treatment avoided surgery in more than half of patients and provided similar clinical outcomes with lower hospitalization requirements. In patients with lumbar disc herniation requiring surgery (microdiscectomy/discectomy), initial intradiscal ozone treatment could offer benefits for patients and healthcare service providers (NCT00566007).