1). McLaren AC, Bailey SI. Cauda equina syndrome: a complication of lumbar discectomy. Clin Orthop. 1986; 204:143–149.
2). Shin BJ. Percutaneous Endoscopic discectomy: The 49th Spring Congress of the Korea Orthop. Assoc. 2004; 266-271.
3). Aho AJ, Auranen A, Pesonen K. Analysis of cauda equina syndrome in patients with lumbar disc prolapse. Preoperative and follow up clinical and cytometric studies. Acta chir Scand. 1969; 135:413–420.
4). Choundhury AR, Taylor JC. Cauda equina syndrome in lumbar disc disease. Acta orthop Scand. 1980; 51:493–499.
5). Jennet WB. A study of 25 cases of comression of the cauda equina by prolapsed intervertebral discs. J Neurol Aeursurg and Psychiat. 1956; 19:109–116.
6). Kostuik JP, Harrington L, Alexander D, Rand W, Evans D. Cauda equina syndrome and lumbar disc herni -aion. J Bone Joint Surg. 1986; 68-A:386–391.
7). Shephard RH. Diagnosis and prognosis of cauda equina syndrome produced by protrusion of lumbar disc. J British Med. 1959; 1434-1439.
8). Delamarter RB, Sherman J, Carr JB. Cauda equina syndrome: Neurologic recovery following immediate, early, late decompression. Spine. 1991; 16:493–499.