Application of percutaneous foraminotomy with a specially designed drill tip for foraminal stenosis patient- A case report -

摘要

This case report describes a new method of pain management intervention: percutaneous foraminotomy using the Claudicare system (Seawon Meditech, Korea). In this case, a 77-year-old Asian man visited the hospital with motor weakness in his left foot. He was diagnosed with L4–5 grade three foraminal stenosis using Magnetic Resonance Imaging on both sides. A left L4–5 foraminal decompression was performed using percutaneous foraminotomy. The patient revisited the hospital after 17 months because the same symptoms recurred in his right foot. We observed that the symptoms on the left foot had disappeared completely. We confirmed the lesion on the right side and the postoperative change on the left side on the magnetic resonance imaging (MRI) image. Both the pre- and postoperative MRI images were compared by measuring the dimensions of the foraminal area (28.12 mm2 vs. 38.58 mm2, repectively). T1W images showed signs of increased epidural soft tissue after percutaneous foraminotomy.