1Chen HH, Cheung NN, Wang WK, et al. Biomechanical analysis of unilateral fixation with interbody cages. Spine, 2005, 30 : E92 - E96.
2McAfee PC, Farey ID, Sutterlin CE, et al. The effects of spinal implant rigidity on vertebral bone densitometry. A canine model. Spine, 1991, 16:190 -197.
3Shono Y, kaneda K, Abumi K, et al. Stability of posterior spinal instrumentation and its effects on adjacent motion segments in the lumbosacral spine. Spine, 1998, 23:1550 - 1558.
4Tuttle J, Shakir A, Choudhri HF. Paramedian approach for transforaminal lumbar interbody fusion with unilateral pedicle screw fixation. Neurosurg Focus, 2006, 20 : E5 - E10.
5Nakai O, Ookawa A, Yamaura I. Long - term roentgenographic and functional changes in patients who are treated with wide fenestration for central lumbar stenosis. J Bone Joint Surg ( Am ) , 1991, 73 : 1184 - 1189.
6Kabins MB, Weintein JN, Spratt KF, et al. Isolated L4- L5 fusion using the variable screw placement system: Unilateral versus bilateral. J Spinal Disord, 1992, 5:919 - 926.
7Suk KS, Lee HM, Kim NH, et al. Unilateral versus bilateral pedicle screw fixation in lumbar spinal fusion. Spine, 2000, 25:1843 - 1847.
8Slucky AV, Brodke DS, Droge JA. Increasing the stability of unilateral transverse lumbar interbody fusion. Spinal J, 2003, 3:S139 -S145.
9Jang JS, Lee SH. Minimally invasive transforaminal lumbar interbody fusion with ipsilateral pedicle screw and contralateral facet screw fixation . J Neurosurg Spine, 2005,3:218 -223.
