Table 1

Characteristics of all the studies included in this meta-analysis

StudyYearCountryStudy designPatients
(n)
Gender
(M/F)
Length of
follow-up
(month, mean)
Site of fractureLength of operation
(min, mean)
Blood loss
(mL, mean)
Hung et al 16 2018ChinaRCs16 (G1)
14 (G2)
18/1224.3Anterior pelvic ring fracture206.13 (G1)
276.21 (G2)
275.00 (G1)
549.29 (G2)
Shuang et al 18 2016ChinaRCT6 (G1)
7 (G2)
10/310.6Intercondylar humeral fractures70.6 (G1)
92.3 (G2)
NA
Maini et al 17 2017IndiaRCT12 (G1)
13 (G2)
23/2NAAcetabulum fracture111 (G1)
119 (G2)
467 (G1)
525 (G2)
Yang et al 20 2017ChinaRCT20 (G1)
20 (G2)
28/1210.6Elbow fracture61 (G1)
82 (G2)
47 (G1)
69 (G2)
Cai et al 13 2018ChinaRCs65 (G1)
72 (G2)
82/559Unstable pelvic fracture58.63 (G1)
72.38 (G2)
NA
Wang et al 19 2018ChinaRCs21 (G1)
25 (G2)
14/3217.8Humeral shaft fracture42.62 (G1)
60.36 (G2)
105.19 (G1)
120.80 (G2)
Giannetti et al 15 2016ItalyPCs16 (G1)
24 (G2)
22/1813.3Tibial plateau fractures148.2 (G1)
174.5 (G2)
NA
Zheng et al 22 2017ChinaPCs19 (G1)
20 (G2)
22/176Intertrochanteric fracture46.27 (G1)
60.58 (G2)
98.35 (G1)
162.57 (G2)
You et al 21 2016ChinaRCT34 (G1)
32 (G2)
27/3922.3Proximal humeral fracture77.65 (G1)
92.03 (G2)
235.29 (G1)
281.25 (G2)
Chen et al 14 2018ChinaRCs32 (G1)
53 (G2)
22/6326.4Proximal end of the humerus fracture61.5 (G1)
80.4 (G2)
83.1 (G1)
100.5 (G2)
  • G1, 3D printing group; G2, conventional treatment group; M/F, male/female; NA, not available; PCs, prospective comparative study; RCT, randomised controlled trial;RCs, retrospective comparative study.