Shoulder - Lateral (Scapular Y)

Radiographic Positioning

Adult

Other related pages of interest Applied Radiography Radiographic Anatomy Radiographic Protocols

Name of projection	Shoulder - Lateral (Scapular Y)
Area Covered	Proximal humerus, scapula and scapulohumeral joint
Pathology shown	Fractures and or dislocations of proximal humerus and scapula. The humeral head will be inferior to the coracoid process with anterior dislocation, and with posterior dislocation the humeral head will be inferior to the acromion process
Radiographic Anatomy	Shoulder Radiographic Anatomy
IR Size & Orientation	24 x 30cm Portrait
Film / Screen Combination	Regular (CR and DR as recommended by manufacturer)
Bucky / Grid	Moving or stationary grid Can be done either in bucky or out of bucky with exposue modified accordingly
Filter	No
Exposure	70 kVp 20 mAs (in Bucky)
FFD / SID	100cm
Central Ray	CR perpendicular to IR CR directed to the scapulohumeral joint (5 - 6cm) below top of shoulder
Collimation	Four sides of collimation Shutter A - to include acromion, coracoid process and clavicle Shutter B - to include skin margin laterally and scapula medially
Markers	Distal and lateral marker orientation PA
Shielding	Gonadal (check your department's policy guidelines)
Respiration	Suspended
Positioning	Erect Position patient erect and facing towards the upright bucky Rotate into an anterior oblique position. Average patient will be in a 45° to 60° anterior oblique position. Palpate the scapula borders to determin the correct rotation for a true lateral Abduct arm slightly to not superimpose humerus over ribs CR directed to the scapulohumeral joint (5 - 6cm) below top of shoulder
Critique PACEMAN	Positioning Area Covered Collimation Exposure
Special Notes	If the patient's condition requires it, the scapular Y view may be performed supine with the patient in the opposite posterior oblique position.