Fig. 3From: Is a patient-specific drill template via a cortical bone trajectory safe in cervical anterior transpedicular insertion?Two-millimeter-diameter K-wires were inserted into cadaveric cervical vertebrae with PDTs. a A K-wire was drilled into the cervical pedicle guided by the 3DP-produced PDT. b A K-wire was inserted, guided by the CNC-manufactured PDTBack to article page