[Significative reduction of secondary effects of radicular myelography using an ultra-fine puncture needle]

The authors report the adverse reactions to myelography in two groups of patients. The only difference was the spinal needle size: 20 G (0.9 mm) in the first group versus 26 G (0.45 mm) in the second one. In the second group the adverse reactions appear 3 to 10 less frequent and 3 to 5 less lasting.