Figure 3From: Unilateral versus bilateral pedicle screw fixation of minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF): a meta-analysis of randomized controlled trials Forest plot: weighted mean difference (WMD) in postoperative ODI and 95% CI for unilateral versus bilateral pedicle screw fixation of MIS-TLIF. No significant difference was found between the two groups.Back to article page