4Fergusion RL,Allen BI Jr. A mechanism classification of thoracolumbar fractures [ J ]. Clin Orthop, 1984, 189: 77-88.
5Courtois I,Lauwers A, Prades B, et al. Can an osteoporotic vertebral fractures cause compression of the spinal cord or cauda equina[J]. Rev Rhum Engl Ed, 1998,65:207--211.
6Boeck HD, Opdeeam P. Splite coronal fractures of the lumbar spine. Treatment by posterior internal fixation and transpedicular bone grafting [ J ]. Inter Orthop (SICOT),1999,23: 87-- 90.
7Pope MH, Panjabin M. Biomechanical definitions of spinal instability[ J ]. Spine, 1985,10 : 255- 256.
8Haber TR, Felrny W, Braruch H, et al. The contribution of the three columns of the spine to rotational stability , A biomechanical model[J]. Spine, 1989,14:663--669.