Skip to main content

Table 1 The characteristics of the extracted research data

From: Pedicle screw placement in spinal neurosurgery using a 3D-printed drill guide template: a systematic review and meta-analysis

AuthorPublication yearStudy locationStudy yearGroupNAge (year), mean (SD)Male, (male/female)Number of total screwsNumber of qualified screwsNumber of misplace screwsOperative time (min), mean (SD)Blood loss (ml), mean (SD)Other outcomes
Cecchinato R2019Italy2015.1–2016.10A
B
14
15
34 (15.3)
26 (17.2)
2/12
1/14
297
243
224
160
73
83
UCUC
Chen H2015China2014.8–2015.3A
B
20
23
52.3 (8.75)
55.4 (8.75)
9/11
12/11
118
122
108
99
10
23
UCUC
Garg B2018IndiaUCA
B
10
10
15.5 (3.8)
16.6 (4.9)
3/7
4/6
137
126
125
104
12
22
235.3 (55.7)
298.5 (59.3)
630 (227.6)
840 (533.3)
Guo F2017ChinaUCA
B
13*UCUC37
37
32
23
5
14
UCUC
Jiang L2017China2012.6–2014.12A
B
25
29
43.5 (10)
46.9 (7.25)
16/9
18/11
100
116
96
103
4
13
171.84 (22.46)
182.76 (28.4)
309.20 (33.41)
322.07 (26.51)
Liu K2016China2011.10–2015.3A
B
10*UCUC48
104
45
82
3
22
UCUC
Merc M2013Slovenia2011–2012A
B
9
10
59 (5)
62 (12)
4/5
5/5
54
54
50
45
4
9
143 (113)
176 (90)
UC
Merc M (2)2013SloveniaUCA
B
7
8
UCUC30
36
26
21
4
15
UCUC
Merc M2017Slovenia2011–2013A
B
11
13
60.6 (6.7)
62.8 (11.7)
5/6
6/7
72
72
66
43
6
29
UCUC
Pan Y2018China2014.1–2017.6A
B
20
17
16.3 (1.8)
16.5 (1.4)
7/13
6/11
396
312
354
234
42
78
283 (22.7)
285 (25.8)
UC
Pu X2018China2013.6–2016.6A
B
25
24
UC11/14
14/10
100
96
98
72
2
24
106.1 (10.9)
138.2 (21.7)
185.0 (59.5)
311.0 (87.4)
Wu C2015China2011.2–2013.11A
B
18
24
37.2 (25–57)
38.7 (27–56)
UC144
192
131
135
13
57
133.3 (15.9)
162.2 (21.7)
735.1 (127.7)
843.2 (147.8)
Zhang Y2015China2013.12–2014.12A
B
10
10
11.9 (4.2)
12.6 (3.8)
3/7
2/8
167
165
138
98
29
67
163.5 (53.7)
164.0 (48.7)
455 (447)
415 (389)
  1. *: the total number of participants in both group A and B, A template group, B free-hand group, TN total number, N number of patients, UC unclear, SD standard deviation, VAS, ODI, follow-up in months, mean time per screw, number of fluoroscopy, postoperative Cobb angle, changes of creatinine level, JOA