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Table 2 Summary of information of the prospective studies and retrospective studies

From: Transforaminal endoscopic discectomy versus conventional microdiscectomy for lumbar discherniation: a systematic review and meta-analysis

Study Low-back pain Leg pain ODI Recurrence Hospital stay Complications Average duration of surgery (min)
Hermantin et al. [20] 1.2 vs. 1.9 0 vs. 0
Mayer and Brock [21] 10/19 vs. 15/20 8.23 ± 1.3 vs. 7.67 ± 1.9 1/20 vs. 0/20 40.7 ± 11.3 vs. 58.2 ± 15.2
Ruetten et al. [10] 3 vs. 5 0 vs. 4
Gibson et al. [22] 2.50 ± 2.5 vs. 3.0 ± 2.8 1.9 ± 2.6 vs. 3.5 ± 3.1 18 ± 17 vs. 22 ± 20 5 vs. 2 0.7 ± 0.7 vs. 1.4 ± 1.3 days 0 vs. 0 28 ± 11 vs. 29 ± 12
Mehmet [27] 1.13 vs. 1.2 days 94 vs. 71
Kim et al. [23] 28/295 vs. 38/607 0 vs. 1
Lee et al. [24] 1 vs. 0 19.5 ± 30.12 vs. 71.9 ± 60.05 h 42.6 ± 14.21 vs. 65.1 ± 23.17
Ahn et al. [25] 2.50 ± 0.62 vs. 2.91 ± 0.67 2.06 ± 0.84 vs. 2.32 ± 1.01 9.63 ± 2.31 vs. 10.68 ± 2.67 1 vs. 1 7.50 ± 2.63 vs. 15.65 ± 4.80 h 4 vs. 4 48.66 ± 6.45 vs. 53.71 ± 8.49
Hsu et al. [26]   1.56 ± 2.18 vs. 1.29 ± 1.84 6.42 ± 9.82 vs. 3.29 ± 6.94 6 vs. 4   1 vs. 1 86.5 ± 45.9 vs. 48.1 ± 9.2