Table 1.
General information of the eligible studies.
| Study (year) | Patient (n) | Age (year) | Gender (male/female) | Variables assessed | Follow-up (month) |
|---|---|---|---|---|---|
| Maini et al.7 (2018) | a, b, e | unclear | |||
| 3D printing | 10 | 37.9 | 9/1 | ||
| Conventional | 11 | 40.5 | 9/2 | ||
| Maini et al.8 (2018) | a, b, e | unclear | |||
| 3D printing | 12 | 38.2 | 11/1 | ||
| Conventional | 13 | 40.3 | 12/1 | ||
| Huang et al.9 (2020) | a, c, d, f | 40 | |||
| 3D printing | 20 | 43.4 | 12/8 | ||
| Conventional | 20 | 37.4 | 14/6 | ||
| Wan et al.10 (2019) | a, b, c, d, e, f | 6 | |||
| 3D printing | 48 | 43.4 | 34/14 | ||
| Conventional | 48 | 41.5 | 32/16 | ||
| Chen et al.11 (2019) | a, b, e, f | unclear | |||
| 3D printing | 28 | 46.1 | 18/10 | ||
| Conventional | 24 | 42.3 | 14/10 | ||
| Liu et al.12 (2017) | a, b, c, d, e, f | 15 | |||
| 3D printing | 19 | 37.6 | 12/7 | ||
| Conventional | 34 | 37.4 | 23/11 | ||
| Zhang et al.13 (2016) | a, b, c, d, e, f | 20 | |||
| 3D printing | 53 | 41.2 | 36/17 | ||
| Conventional | 68 | 42.6 | 42/26 | ||
| Wang et al.14 (2016) | a, b, c, d, e | 11 | |||
| 3D printing | 15 | 45.1 | 7/8 | ||
| Conventional | 19 | 43.7 | 11/8 | ||
| Zhang et al.15 (2020) | a, b | 12 | |||
| 3D printing | 12 | 38 | 7/5 | ||
| Conventional | 13 | 40.0 | 7/6 | ||
Variables assessed: a. operation time, b. intraoperative bleeding volume, c. intraoperative fluoroscopy times, d. total incidence of complications, e. the excellent and good rate of Matta score for reduction, f. the excellent and good rate of postoperative hip joint function.