4Becker S, Chavanne A, Spitaler R, et al. Assessment of different screw augmentation techniques and screw designs in osteoporotic spines. Eur Spine J, 2008, 17(11): 1462-1469.
5Cook SD, Salkeld SL, Stanley T, et al. Biomechanical study of pedicle screw fixation in severely osteoporotic bone. Spine J, 2004, 4(4): 402-408.
6Lei W, Wu Z. Biomechanical evaluation of an expansive pedicle screw in calf vertebrae. Eur Spine J, 2006, 15(3): 321-326.
8Ming-Li F, Hui-Liang S, Yi-Min Y, et al. Analysis of factors related to prognosis and curative effect for posterolateral fusion of lumbar lowgrade isthmic spondylolisthesis. Int Orthop, 2008, 11 (8): 1128-1136.
9McGregor AH, Cattermole HR, Hughes SP. Global spinal motion in subjects with lumbar spondylolysis and spondylolisthesis: does tbe grade or type of slip affect global spinal motion? Spine, 2001, 26(3): 282-286.
10Pearson AM, Lurie ]D, Blood EA, et al. Spine patient outcomes research trial: radiographic predictors of clinical outcomes after operative or nonoperative treatment of degenerative spondylolisthesis. Spine, 2008, 33(25): 2759-2766.
