Lumbar Spine X-Ray Oblique
Objective
Lumbar facet joints and pars interarticularis — "Scottie dog" sign.
Quality criteria
Facet joints visible.
Pars interarticularis in profile.
"Scottie dog" image recognisable.
Common errors
Incorrect obliquity (45° critical).
Incorrect centring.
Movement.
Paziente ruotato di 45° sul lato di interesse. In piedi o supino. Raggio centrale: perpendicolare al piano sensibile.
Full card in the app
Positioning, centring, DR/CR parameters and practical notes
