SPINAL STENOSIS AFTER TOTAL LUMBAR LAMINECTOMY FOR SELECTIVE DORSAL RHIZOTOMY

Knowledge of long-term outcome and complications of selective dorsal r hizotomy is limited due to the relatively recent introduction of the p rocedure. We describe 2 patients with cerebral palsy who developed lum bar spinal stenosis several years after selective dorsal rhizotomy. Th ese patients also had substantial lateral trunk sway during gait and w alked for several years with limited assistive devices. This abnormal gait pattern in combination with the changes from the selective dorsal rhizotomy may lead to the development of spinal stenosis.