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Shoulder Girdle

QuestionAnswer
What 2 bones form the Girdle? Clavicle
What 2 bones form the Girdle? Scapula
Girdle Function Connects upper limb to the trunk
Scapula lies at a_______ in relation to the anatomic position 45-60 degree angle
Scapula is classified as a? Flat Bone
Lordotic projection will? Distort the Clavicle
The humerus is part of the? Shoulder Joint
Humerus Image Criteria Entire elbow and shoulder joints visible including surrounding soft tissue
AP Humerus Image Criteria • Shoulder in external rotation • Greater tubercle in profile laterally • Humeral head in profile medially
Lateral Humerus Image Criteria • Shoulder in internal rotation • Lesser tubercle in profile medially • Humeral head in profile laterally
AP Shoulder- External Rotation Image Criteria • Greater tubercle in profile laterally • Humeral head in profile medially • Outline of lesser tubercle superimposed on humeral head
AP Shoulder- Internal Rotation Image Criteria • Lesser tubercle in profile medially • Humeral head in profile laterally • Outline of greater tubercle superimposed on humeral head
AP Shoulder- Grashey Image Criteria Glenoid cavity is demonstrated in profile and the glenohumeral joint space is open
AP Shoulder- Y View Image Criteria • Acromion projected laterally and free of superimposition • Coracoid projected medially, either superimposed or projected below the clavicle • Humeral shaft and scapular body superimposed
AP Scapula Image Criteria • Humeral shaft demonstrates 90 degrees of abduction • Lateral portion of the scapula free of superimposition from the ribs • Superior angle of the scapula is not superimposed by the clavicle • Midscapular body is at the center of the exposure field.
Lateral Scapula Image Criteria Inferior border of the Scapula must be in the image
AP Clavicle Image Criteria • Entire clavicle, AC & SC joints, and acromion process in image • Lateral half of the clavicle above the scapula, • Medial half of the clavicle superimposing the thorax
AP Axial Clavicle Image Criteria • Clavicle bows upwardly, more horizontal • Clavicle is above the superior scapular angle • Better visualization of the inferior tubercle
Shoulder Y-View CR placement Enters the medial border of the scapula at the scapulohumeral joint
Scapula Y-View CR placement Enters the medial border of the scapula at middle of the scapula
Bilateral AC Joints Image Criteria • Both AC Joints included in the image • No rotation, Clavicles and SC joints are symmetric • No leaning, Clavicles lie in the same plane
Bilateral AC Joints With Weights Image Criteria Image shows AC joint separation
Lateral Aspect of the Clavicle Acromial Extremity
Medial Aspect of the Clavicle Sternal Extremity
Grashey View Patient Position • Hand on stomach • 35 – 45° rotation toward affected side
What X-Ray requires the patient to position their arm behind their back? Lateral Scapula
Inferosuperior Axial (Lawrence) Patient Position • Abduct arm (minimum 20°) • Humerus in external rotation (palm toward ceiling) • Turn head away from affected side
Inferosuperior Axial (Lawrence) Central Ray Placement Through the axilla (armpit) to the region of the AC articulation
Inferosuperior Axial (Lawrence) CR Angulation The degree of medial angulation is often between 15 degrees and 30 degrees. The greater the abduction, the greater the angle.
If the lateral border is: Farther from the ribs In line with the Acromion process The patient is_____________ Under Rotated
If the lateral border is: Closer to the ribs In line with the Coracoid The patient is____________ Over Rotated
Over Rotated mean the patient is? Too Internally Rotated
Under Rotated mean the patient is? Too Externally Rotated
What shoulder X-Ray requires the Central Ray to be angled 10-15° caudad? Supraspinatus Outlet (Neer)
AP Shoulder- Neutral Rotation Image Criteria • The humeral head superimposes the glenoid cavity • You barely see either the greater or lesser tubercle.
Created by: user-2016295
 

 



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