3Lin YK,Njus GO,Bahr PA,et al. Fatigue life improvement of nitrogen-ion-implanted pediele serews[J]. Spine, 1990,15:311-317.
4Kim SS, Denis F. Ionstein ]E, et al. Factors affecting fasion ratein adult apondylolosthesis[J]. Spine, 1990,15 : 979-984.
5Suk SI, Lee CK, Kim WJ, et al. Adding posterior lumbar interbody fusion to pedicle screw fixation and posterola-- teral fusion after decompression in spondylolytic spondylolisthesis[J]. Spine, 1997,22,210-219.
6Lin YK, Njus GO, Bahr PA, et al. Fatigue Iife improvement of nitrogen- ion- implanted pediele serews. Spine, 1990; 15:311~317
8Suk SI, Lee CK, Kim WJ, et al. Adding posterior lumbar interbody fusion to pedicle screw fixation and posterolateral fusion after decompression in spondylolytic spondylolisthesis.Spine, 1997 ;22:210~219
9Yuan HA,Garfin SR,Dickman CA, et al.A historico- lcohort study of pedicle screw fixation in thoracic, lunbar, and sacral spinal fusions. Spine, 1994; 19: 2279