Upper Extremities Flashcards
Which fingers are placed in mediolateral projections?
2nd or 3rd digits
Which fingers are placed in lateromedial projections?
4th and 5th digits
What is the CR for PA fingers?
PIP joint
Positioning the hand for a PA projection places the thumb in what position?
Oblique
What is the CR for all thumb projections?
1st MCP joint
What is the CR for PA hand?
3rd MCP joint
What hand position is best to demonstrate foreign bodies?
Lateral with fingers extended
Proper name for Scaphoid PA axial?
Stecher
How is the hand placed for Scaphoid view?
Ulnar deviation
What is the CR angle for Scaphoid view?
20 degree toward the elbow
What is the proper name for the Tangential Carpel view?
Gaynor-Hart
What nerve is impinged with carpel tunnel?
Median
How are the hand and wrist positioned for tangential carpel tunnel view?
Hyperextended
What line is parallel to the IR in AP forearm?
Epicondylar line
Why is AP forearm preferred over PA?
Prevent overlap of proximal radius and ulna
What part of the distal humerus articulates with the ulna?
Trochlea
What part of the distal humerus aritculates with the radius?
Capitulum
What elbow position is best to demonstrate a fat pad sign?
Lateral
What is seen in profile in a lateral elbow view?
Olecranon process
What is demonstrated in lateral external oblique view?
Radial head with no superimposition
What is demonstrated in a medial internal oblique view?
Olecranon and coronoid processes of the ulna
Humerus - what is in lateral profile in when the epicondylar line is parallel to IR?
Greater tubercle
Humerus - what is in medial profile when the epicondylar line is perp to the IR?
Lesser tubercle
How is patient rotated for anterior Y-view?
Rotate toward the affected side 45-60 degrees
What is demonsrated in scapula Y-view?
Relationship between humeral head and the glenoid fossa - anterior or posterior dislocation of the shoulder joint
The humeral head sits below the coracoid process with a/an _______ dislocation of the shoulder
Anterior
The humeral head sits below the acromion with a/an _______ dislocation of the shoulder
Posterior
What is the proper name for Transthoracic?
Lawrence
Where is the CR directed for a Transthoracic view?
Surgical neck of affected humerus
What angle is used in a Transthoracic view?
10-15 cephalic
What is in profile in a Transthoracic view?
Lesser tubercle
What makes up the shoulder girdle?
Clavicle and scapula
Where is the CR for AP shoulder?
1” below coracoid process
What does internal shoulder rotation demonstrate?
Lesser tubercle in medial profile
What does external shoulder rotation demonstrate?
Greater tubercle in lateral profile
How much is patient rotated for Grashey view?
35-45 toward affected side
What does the Grashey view demonstrate?
Glenohumeral joint space
What angle is used for AP clavicle?
15-30 degrees
What is the proper name for the AC joints projection?
Pearson
Why are AC joint projections used with and without weights?
Without weights - check for fractures
With weights - check for separation
What hand is used for a bone age study?
Non-dominant hand
