3Wilco C. Peul, Prolonged conservative care versus early surgeryin patients with sciatica caused by lumbar disc herniation: two year results of a randomised controlled trial[J]. BMJ 336:1355 doi:lO. 1136/bmj. a143 (Published 23 May 2008).
6Reanick DK,Choudhri TF,Dailey AT,et al. Guideline for the perform ance of fusion proceduces for degenerative disease of the lumbar [J]. Clinical Orthopaedics and Related Research, 2006,23(3):183-197.
7Macnab I.Negative disc exploration:an analysis of the causes of nerve-root involement in sixty-eight patients.J Bone Joint Surg (Am),1971,53:891
8Wall EJ,Cohen MS,Ahotbol JJ,et al.Organization of in trathecal nerve rots at the level of the conus medullaris.J Bone Joint Surg (Am),1990,72 (10):1495
9Bao QB,McCullen GM,Higham PA,et al.The artificial disc:theory,design and materials.Biomaterials,1996,17:1157-1167.
