Endovascular Treatment of Excessive Spasticity from Spinal Cord Injury

We report a new treatment for excessive spasticity using an endovascular technique. A 52-year-old woman with intractable spasticity of the hip joints and abdominal muscles was treated with an injection of 70% alcohol into Adamkiewicz's artery, which destroyed the spinal cord fed by Adamkiewicz's artery and cut the reflex arcs of excessive spasticity. Immediately after the treatment a significant change was noticed in muscle tonicity of the lower extremities, and intractable spasticity disappeared. Skin necrosis and muscle damage occurred because of the alcohol that leaked into the muscle branch of the subcostal artery. However, these complications could be treated by simple necrotomy. No recurrence was observed during the follow-up period. We believe this endovascular treatment will become a new strategy for excessive spasticity arising from spinal cord injury.