Bone cement-augmented pedicle screw fixation for lumbar spondylolisthesis combined with osteoporosis: 1-year follow-up 
Ding Quan, Chen Yong
Chinese Journal of Tissue Engineering Research . 2015, (48): 7752 -7757 .  DOI: 10.3969/j.issn.2095-4344.2015.48.008