“…Relevant imaging studies include plain radiography, computed tomography (CT), magnetic resonance imaging (MRI), ultrasound (US), and scintigraphy. 16 Plain film radiography is helpful during initial screening to rule out other pathologies such as acute fractures, dislocations, and/or severe degenerative joint disease. A complete series radiographic evaluation consists of four views: the lateral oblique transcranial projection, anterior-posterior projection, submental vertex, and transcranial projections.…”