Minimally Invasive Spinal Arthrodesis in Osteoporotic Population Using a Cannulated and Fenestrated Augmented Screw: Technical Description and Clinical Experience

<table>When fenestrated screw is placed through the percutaneous or miniopen approach, the length of screw is important because of the risk of extravasation of PMMA bone cement. An optimal alignment with the pedicle is recommended. Position of the holes must be located as far as possible from the posterior wall. </table>

Minimally Invasive Surgery

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Figure 3: Minimally Invasive Spinal Arthrodesis in Osteoporotic Population Using a Cannulated and Fenestrated Augmented Screw: Technical Description and Clinical Experience 

Figure 3 | Minimally Invasive Spinal Arthrodesis in Osteoporotic Population Using a Cannulated and Fenestrated Augmented Screw: Technical Description and Clinical Experience 