Description

Test Criteria

This view is used most commonly to assess for a pars interarticularis defect, although this has largely been superseded by CT and MRI. Additionally, it is a frequently used view for needle placement in fluoroscopic guided procedures ², such as

•  two radiographs performed with patient at RPO 35-45°  and LPO 35-45°
• ensure arms are removed from the region of interest
• using a 45° radiolucent sponge in the supine position will assist the patient in maintaining the correct position, whilst flexing the knees will also provide stability.

Technical factors