3Spenlger DM,Quellette EA,Battie M,et al. Elective discectomy for herniation of a lumbar disc:additional experience with an objective method[J].J Bone Joint Surg(Am),1990,72(2):230-237.
4Herron L. Recurrent disc herniation:results of repeat laminectomy and discectomy[J].J Spinal Disord,1994,7(2) :161-166.
5Carragee EJ,Han MY,Suen PW,et al. Clinical outcomes after lumbar discectomy for sciatic :the effects of fragment type and Ann ular competence [J].J Bone Joint Surg (Am) , 2003 , 85 -A(1):102-109.
6Eie N.Comparison of the results in patients operated upon for ruptured lumbar discs with and without spinal fusion[J].Acta Neurochirurgica, 1978,41 ( 1-3 ): 107-113.