Table 2 Characteristics of the included studies
Reference | Year | Country | Study design | Number of cases (OLIF/PLIF) | Age (years) (OLIF/PLIF) | Diagnosis of diseases | Follow-up (months) (OLIF/PLIF) | Closing indicators |
|---|---|---|---|---|---|---|---|---|
Cen et al | 2018 | China | Retrospective | 28/28 | 45.2/43.5 | DLS | Mean 12 | ①③⑤⑥⑦ |
Li et al | 2022 | China | Retrospective | 51/52 | 58.42 ± 2.63/57.90 ± 2.87 | DLSS | Mean 12 | ①②⑥⑦⑧ |
Chen et al | 2022 | China | Retrospective | 38/38 | 63.26 ± 6.31/64.42 ± 5.13 | DLS | – | ②③④⑤⑥⑦⑧ |
Cho et al | 2021 | Korea | Retrospective | 28/31 | 69.7 ± 6.9/67.4 ± 7.6 | DLS | OLIF(27.7 ± 21.7) PLIF(34.9 ± 22.6) | ①②③④⑤⑥⑦⑨ |
Du et al | 2023 | China | Retrospective | 24/30 | 61.38 ± 6.79/60.83 ± 6.67 | DLS | Mean 6 | ①③④⑤⑥⑦⑧⑨ |
Kang et al | 2022 | Korea | Retrospective | 46/42 | 65.04 ± 6.90/65.45 ± 7.95 | LDDs | Mean 12 | ①②③⑤⑥⑦⑧ |
Li et al | 2020 | China | Retrospective | 20/22 | 53.38 ± 4.19/53.62 ± 4.63 | DLS | – | ③④⑤⑥⑦⑨ |
Zhao et al | 2021 | China | Retrospective | 52/44 | 63.47 ± 9.26/62.27 ± 9.08 | LDDs | Mean 6 | ①③⑤⑥⑦ |