From: A novel minimally invasive neurosurgical cranial fixation device for improved accuracy of intraventricular catheter placement: an experimental animal study
Single Pull Force
[kgf]
Mean
SD
Ball Exit Pullout Force
5.07
4.29
4.07
4.39
3.09
4.18
± 0.73
Single Screw Pullout Force
7.10
5.98
4.01
3.89
3.66
4.93
± 1.53