This document discusses radiographic evaluation of the cervical spine. It lists features to look for on AP films such as asymmetry, misalignment, and translation. It also mentions evaluating the pedicle and spinous process. The document recommends an open mouth odontoid view and notes Spence's Law for determining C1-C2 instability, where the overhang of C1's lateral masses on C2 should be less than or equal to 7 mm.