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Flashcards in Shoulder Deck (17):
1

What are the routine views of the shoulder?

- AP in IR
- AP in ER
- WB vs NWB of AC joint
- Scapula AP
- Scapula Lateral

2

What can should be noted when comparing WB vs NWB views of the AC joint?

- AC gap
- Coracoclavicular gap

for ligament sprains

3

What 4 things is the axillary view of the shoulder useful in evaluating?

- Coracoid
- Rim of glenoid
- Humeral head and shape
- Subluxation/ dislocation

4

What is the scapular Y lateral view of the shoulder useful in evaluating?

- GH dislocations
- Subacromial space

5

How is the patient oriented in relation to the image receptor for the scapula AP view?

- Image posterior to patient
- Shoulder abducted 90 degrees and externally rotated.
- Should position causes scap to be abducted, upwardly rotated, and clear of the rib cage laterally
- Otherwise in AP

6

How is the patient oriented in relation to the image receptor for the scapula lateral view?

- Patient sidelying with the scapula being evaluated positioned upwards towards the x-ray beam
- Shoulder flexed to 90 degrees, horizontally adducted to free view of scap
- Elbow flexed for comfort
- Arm positioned across front of the Pt's chest to free the body of the scap from superimposition of the humeral shaft.
- The arm may be positioned behind the Pt's back to free the acromion and coracoid processes from superimposition of the humeral head

7

How is the patient oriented in relation to the image receptor for the axillary view?

- Shoulder abducted 90 degrees
- Patient supine or prone
- Image receptor placed on superior aspect of shoulder
- X-ray beam passes inferiolateral to superiormedial through the joint

8

What is the more technical name of the axillary view?

- inferiosuperor axial projection of GH joint

9

How is the patient orient in relation to the image receptor for the scapular Y lateral view?

- patient is standing facing the image receptor with their affected shoulder in direct contact, but their body canted at an angle of 60 degrees.
- X-ray enters joint perpendicular to image receptor

10

What is the more technical name of the scapular Y lateral view?

- anterior oblique view of the shoulder

11

What two fractures/ bony deformities may occur due to GH dislocations?

- Bankart fracture of glenoid
- Hill-sachs deformity of humeral head

12

What is a bankart fracture?

- Pocket at front of glenoid forms that the humeral head dislocates into anteriorly

13

What is a hill-sachs lesion?

Compressed posterolateral head of humerus due to forceful impaction of the humerus into the anterioinferior glenoid.

14

What is a primary impingement? What are some examples of them in the shoulder joint?

- Skeletal or structural problem
- Spurs (hooked acromion)

15

What is secondary impingement, and what is an example in the shoulder?

- Changes in muscle lead to compression of tissue against bony structures
- Deltoid/ rotator cuff imbalance leads to humeral head being pulled superiorly

16

How can impingements be viewed in radiographic studies?

- Dislocation of bones into impingement
- Calcific deposits indicating injury
- Bone spurs
- White masses in tendons in T-2 MRI indicating tears

17

What are some radiologic signs of adhesive capsulitis?

- A lack of redundant capsule hanging inferiorly to the shoulder when contrast in injected into the GH joint.
- MRI can demonstrate a thickened capsule