Patella X-Ray "Merchant"
Objective
Patellofemoral joint with knee at 45° to assess patellar tracking.
Quality criteria
Patellofemoral joint visible.
Patella centred in the trochlea.
Common errors
Incorrect knee flexion.
Incorrect beam angulation.
Movement.
Paziente supino con ginocchia flesse a 45° oltre il bordo del tavolo (tecnica originale di Merchant). Detettore appoggiato sugli…
Full card in the app
Positioning, centring, DR/CR parameters and practical notes
