Microsurgical Excision of Symptomatic Sacral Perineurial Cyst with Sacral Recapping Laminectomy : A Case Report in Technical Aspects

cessfully with microsurgical excision and neck ligation of cyst originated from the left L5 nerve root, and introduce an operative method using sacral recapping laminectomy. CASE REPORT Case 1This 61-year-old man presented with 2-year history of increasing lumbosacral pain and hypesthesia.On neurologic exam, he showed right L5 and S1 radiculopathy.His symptoms were aggravated by standing, walking, climbing, coughing and lifting, and relieved by sitting.The patient rated his pain 7 of 10 on the visual analogue score (VAS).He had bladder dysfunction and abnormal sensation for urination, and reported insertion of a Foley catheter 2 months ago.Preoperative MR imaging demonstrated 30×17×11 mm sized sacral cyst with another small cyst from L5 to S2 level (Fig. 1A).Myelogram and CT showed the contrast-filled bridge between the thecal sac and the cystic mass and sacral cyst causing compression of adjacent nerve roots (Fig. 1B, C).An L5 laminectomy and S1-3 en bloc laminectomy were performed.