Minimally Invasive Spinal Arthrodesis in Osteoporotic Population Using a Cannulated and Fenestrated Augmented Screw: Technical Description and Clinical Experience
Figure 4
The optimal alignment of the heads of the screws is important. He can be controlled at the top of the screw extenders (a) or on a lateral fluoroscopic view (b). When all the fenestrated screws are optimally placed, we suggest testing the unconstraint placement of the rod to avoid positioning issues during the definitive rod placement after cement injection.
