Fig. 2
From: Fabricating patient-specific 3D printed drill guides to treat femoral head avascular necrosis
(A) 3D-printed guide fitted to a foam cortical shell femur is displayed. The femur was modeled using a dual-energy CT scan and the custom device was fitted using 3D modeling software. A Jamshidi needle, utilized subsequently for an AVN decompression device, was positioned using the modeled femur. A second dual-energy CT-scan was obtained after drilling the foam cortical shell femur with the Jamshidi needle. (B and C) The position of the Jamshidi needle after drilling was compared to the 3D-modeled position