From: Unilateral versus bilateral pedicle screw fixation of minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF): a meta-analysis of randomized controlled trials
Study
Preoperative VAS-BP score
Preoperative ODI
Unilateral PS
Bilateral PS
Choi [15]
7.6
7.7
27.8
27.9
Xiaolong [16]
6.8 ± 1.6
7.2 ± 2.1
57.56 ± 19.12
51.58 ± 16.38
Dahdaleh [17]
5.7 ± 2.6
5.7 ± 2.5
37.4 ± 9.2
39.2 ± 12
