9[9]Zippel H."Charite modular"concept,experience and results, in Brock M,Mayer HM,Weigel K(eds):The Artificial Disc[M].Berlin:Springer-Veri ag,1991,69～77.
10[10]Griffith SL,Shelokov AP,Buttner-Janz K,et al.A multicente r retrospective study of the clinical results of the Link SB.Charite interverteb ral prosthesis.The initial experience[J].Spine,1994,9:1842～1949.
4Loupasis GA, Stamos K, Katonis PG, et al. Seven- to 20-year outcome of lumbar discectomy[J]. Spine, 1999,24(22):2313-2317.
5Yorimitsu E, Chiba K, Toyama Y, et al. Long-term outcomes of standard discectomy for lumbar disc herniation: a follow-up study of more than 10 years [J]. Spine, 2001,26(6):652-657.
6[1]Lcupasis CA,stamos K,Katonis PG,et al.Seven-to 20 Year outcome of Lumbar discetomy.Spine,1999,24(22):2313～2317.
