A radiograph of an AP open-mouth projection of the cervical spine reveals that the zygapophyseal joints are not symmetric.No fracture or subluxation is present.Which one of the following positioning errors most likely led to this radiographic outcome?

Question

Quizplus · Accepted Answer

The zygapophyseal joints are not symmetric, which indicates that the cervical spine is rotated. This most likely occurred due to incorrect patient positioning, where the patient's head and/or neck was not aligned properly with the central ray. Excessive or insufficient CR angulation or excessive flexion of the head would not cause asymmetry of the zygapophyseal joints.

A Radiograph of an AP Open-Mouth Projection of the Cervical