Table 1 Characteristics of included studies
Author (years) | Country | Study type | Number of samples | Gender (male) | Average age | Follow-up (months) | Technique of fusion | Outcomes |
|---|---|---|---|---|---|---|---|---|
CS/PS | CS/PS | CS/PS | CS/PS | CS/PS | ||||
Hoffman et al. (2019) [15] | USA | Cohort | 23/35 | 16/16 | 48.5/53.4 | 52.5/52.5 | MIDLF/TLIF | 1, 2, 3, 4, 5, 6, 8, 9 |
Marengo et al. (2018) [16] | Italy | Cohort | 20/20 | 12/9 | 45.75/54 | 12/12 | PLIF/PLIF | 1, 2, 3, 4, 6, 8, 9, 10 |
Lee and Ahn (2017) [17] | Korea | RCT | 35/37 | 31/33 | 51.2/51.7 | 24/24 | PLIF/PLIF | 4, 5, 6, 9, 10 |
Takenaka et al. (2017) [18] | Japan | Cohort | 42/77 | 18/31 | 65.8/66.0 | 17/35.4 | PLIF/PLIF | 1, 2, 4, 5, 8, 9, 10 |
Sakaura et al. (2017) [19] | Japan | Cohort | 22/20 | 4/6 | 70.7/68.3 | 39/35 | PLIF/PLIF | 1, 2, 7, 8, 9, 10 |
Peng et al. (2017) [20] | China | Cohort | 51/46 | 23/21 | 62.8/61.9 | 12/12 | PLIF/PLIF | 1, 2, 3, 6, 8, 9, 10 |
Sakaura et al. (2016) [21] | Japan | Cohort | 95/82 | 46/36 | 68.7/67.0 | 39/35 | PLIF/PLIF | 1, 2, 7, 8, 9, 10 |
Orita et al. (2016) [22] | Japan | Cohort | 20/20 | 11/12 | 63.5/63.7 | 12/12 | TLIF/TLIF | 1, 2 |
Hung et al. (2016) [14] | China | Cohort | 16/16 | 6/5 | 60.37/63.12 | 18/18 | PLIF/PLIF | 1, 2, 3, 4, 5, 6, 7 |
Ninomiya et al. (2016) [23] | Japan | Cohort | 11/10 | 7/5 | 62.2/61.4 | 12/12 | PLIF/PLIF | 9 |
Chin et al. (2016) [24] | USA | Cohort | 30/30 | 18/15 | 48/62 | 24/24 | NM/NM | 1, 2, 4, 5, 6 |
Lee et al. (2015) [13] | Korea | RCT | 38/39 | 33/34 | 51.3/51.9 | 12/12 | PLIF/PLIF | 1, 2, 3, 4, 5, 6, 9, 10 |