Table 2:
Screw accuracy on post-op CT, by the Gertzbein Robbins classification.
-
Robotic – 293 Screws
Freehand – 421 Screws
-
Gertzbein Robbins
Screws
%
Screws
%
P
A
285
97.3%
388
92.2%
0.009
B
8
2.7%
22
5.2%
-
A+B
293
100.0%
410
97.4%
0.004
C
0
0.0%
10
2.4%
-
D
0
0.0%
0
0.0%
-
E
0
0.0%
1
0.2%
-
C+D+E
0
0.0%
11
2.6%
0.004