Modified MacNab method for assessing clinical outcome after oxygen-ozone therapy

Successful treatment
 ExcellentDisappearance of symptoms
Complete recovery in working and sports activities
 GoodOccasional episodes of low back pain or sciatica
No limitations of occupational activities
Failure of treatment
 PoorInsufficient improvement of symptoms
Periodic administration of drugs
Limitation of physical activities
 SurgeryNo improvement
Worsening of clinical situation