Study characteristics.
| Study | Study Design | Minimally Invasive Sacroiliac Joint Fusion Group | Conservative Management Group | Follow-Up (mo) | Quality Assessment | |||
| Participants, n (% Women) | Age, y, mean (Range) | Participants, n (% Women) | Age, y, mean (Range) | Level of Evidence | Overall risk of bias | |||
| Polly et al, 2016 | Randomized controlled trial | 102 (73.5%) | 50.2 (25.6 to 71.7) | 46 (60.9%) | 53.8 (29.5 to 71.1) | 24 | 1 | Low |
| Dengler et al, 2019 | Randomized controlled trial | 52 (73.1%) | 49.4 (27 to 70) | 51 (72.5%) | 46.7 (23 to 69) | 24 | 1 | Low |
| Vanaclocha et al, 2017 | Retrospective comparative cohort | 27 (70.4%) | 48.0 (25 to 69) | 110 (55.2%) | 49.7 (24 to 70) | 72 | 4 | Moderate |
| Cher et al, 2016 | Cost-effectiveness analysis | 274 | – | 46 | – | 12 | – | – |