The value of dorsal column stimulation in multiple sclerosis.

Ten patients with definite and one with probable MS, all markedly inflicted, but with a varying degree of motor and bladder dysfunction were subjected to spinal cord stimulation in a controlled study. None of the patients exhibited appreciable fluctuation in symptoms in the pre-study period. Bladder symptoms were most markedly influenced by electrical stimulation. The reduction in hesitancy and urgency was of great importance to the patients. In 9 of 10 patients reduction in voiding frequency took place, the all over reduction being 8%. Maximum extension torque increased by 9% and flexion torque by 29% during the stimulation when compared to the first placebo period. In selected MS patients, i.e. patients with bladder dysfunction and with a certain muscular reserve, electrical spinal cord stimulation may have an indication.