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Table 3 Preoperative VAS-BP score and ODI of included studies

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 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