Fig. 3
From: Transpedicular vertebral biopsy under O-arm navigation: a technical note
A O Arm being used for 2D confirmation (Red star) and navigation patient frame(yellow) with the calibrated biopsy cannula housing the disc punch with a stopper. B, C The 2D image taken to After Navigated Positioning of guide wires for screw and Biopsy cannula, confirms the position of the tip of cannula which is beyond the neural canal margin. D, E Final 5 screws percutaneous Sextant (Medtronic) Fixation construct