7Katayama Y,Matsuyama Y,Yoshihara H,et al.Comparison of surgical outcomes between macro discectomy and micro discectomy for lumbar disc herniation:a prospective randomized study with surgery performed by the same spine surgeon[J] .J Spinal Disord Tech,2006,19:344-347.
8Kim MS,Park KW,Hwang C,et al.Recurrence rate of lumbar disc herniation after open discectomy in active young men[J] .Spine,2009,34:422-429.
9Kimura J.Electrodiagnosis in diseases of nerve and muscle:Principles and practice[M] .Philadelphia:Davis FA,2001:4.
10NiSlte I,Gerigk L,Brockmann MA,et d.MRI of degenera- tive lumbarspine disease :comparison of non -accelerated and parallelimaging [J].Neuroradiology ,2008,50 (5) :403- 409.