RAD 1125 SHOULDER GIRDLE Flashcards

1
Q

What makes up the Shoulder girdle?

A
  1. Clavicle
  2. Scapula
  3. AC Joints
  4. Humerus (head)
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2
Q

What are the 2 humeral epicondyles?

A
  1. Lateral Epicondyle
  2. Medial Epicondyle
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3
Q

What exactly is the bony thorax made up of?
(Protects heart and lungs)

A

It is made up of the 12 ribs, 1 sternum and 12 Thoracic Vertebrae

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4
Q

What is the Clavicle ( collar bone) connected to?

A

THE CLAVICLE (COLLARBONE) IS ATTACHED TO THE MANUBRIUM (UPPER PART OF THE STERNUM) AT THE SC JOINT ( STERNOCLAVICULAR JOINT)

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5
Q

What is the lateral border of the Scapula ( Shoulder blade) connected to?

A

-THE LATERAL BORDER OF THE SCAPULA( SHOULDER BLADE) IS CONNECTED TO THE HUMERUS AT THE GLENOID CAVITY FORMING THE SHOULDER (GLENOHUMERAL) JOINT

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6
Q

What is the Acromion connected to?

A

-ACROMION (BONY PROJECTION OF SCAPULA) CONNECTS TO THE CLAVICLE AT AC JOINT (ACROMIOCLAVICULAR JOINT)

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7
Q

What are the Views of the Shoulder?

A

-AP External,
-AP Internal,
-AP Neutral
-PA Oblique (Y View), RAO,LAO
-Superior Inferior Axial Shoulder (Lawrence) (AXILLARY VIEW)
- Posterior oblique Grashey Method (LPO. and LPO)
-Neer Method

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8
Q

What are the hand position for AP External shoulder?

A

(SUPINATED) OR Anatomical Position with palm supinate and facing tube

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9
Q

What is expected of the AP External Shoulder?

A
  1. Due to proper External rotation
    The humeral head and Greater Tubercle are in profile on the lateral aspect
  2. Humeral Epicondyles parallel to IR (POSSIBLY AN ALIGNMENT)
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10
Q

What is the hand position for AP Internal shoulder?

A

abduct arm slightly, internally rotate and pronate hand until the humeral epicondyles are perpendicular to IR

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11
Q

What is expected to be seen on an AP Internal shoulder?

A

If properly internally rotated the Head of the humerus with the lesser tubercle in profile and pointing medially
- Humeral epicondyles perpendicular to IR ( ALIGNMENT?)

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12
Q

What is the hand position for AP Neutral shoulder?

A

Palm of the hand placed against hip and epicondyles adjusted at approximately a 45-degree angle with the plane of the IR positions the humerus in neutral position

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13
Q

What is expected to be seen on an AP Neutral shoulder?

A

If properly Neutral rotated Neither tubercles are in profile
- Epicondyles is 45 degrees perpendicular to IR
( 45 DEGREES MEDIAL OBLIQUE) MEDIAL (INWARDS)
-Partial superimposition of greater tubercle over humeral head
- Palmar surface of hand positioned on the lateral aspect of the thigh

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14
Q

What is the CR for AP External, Internal and neutral?

A

Perpendicular to 1 inch inferior to the coracoid process

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15
Q

In the AP External shoulder view, the greater tubercle is in the site of insertion of what muscle?

A

supraspinatus

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16
Q

How are the humeral epicondyles in AP external shoulder?

A

The humeral epicondyles are Parallel to the IR

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17
Q

In AP shoulder internal rotation, what is in profile?

A

head of humerus -but mostly lesser tubercle in profile and pointing medially ( towards the glenoid cavity)

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18
Q

How are the humeral epicondyles for AP shoulder internal?

A

The Humeral Epicondyles are Perpendicular to the IR

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19
Q

In AP shoulder internal, the arm is _________ enough so that the _________ _________ is free from superimposition from the head of the humerus (where site of insertion of __________ ________ is located)

A

abducted, lesser tubercle, subscapular tendon

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20
Q

What can be said about the greater tubercle for AP shoulder neutral?

A

THE GREATER TUBERCLE CANNOT BE SEEN IN PROFILE and also In AP shoulder neutral, there is partial superimposition of greater tubercle over humeral head.

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21
Q

What part of hand should be on the lateral aspect of thigh for AP shoulder neutral? Also how should the humeral epicondyle be positioned in neutral?

A

The Palmar surface of the hand positioned on the lateral aspect of the thigh.
The humeral epicondyles should be placed 45 degrees on the lateral oblique

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22
Q

Review: What’s in profile for AP shoulder external, internal, and neutral?
Also which view the HUMERAL HEAD IS IN PROFILE?

A

External: Greater Tubercle, Humeral head
Internal: Lesser Tubercle
Neutral: Neither Tubercle in Profile, humeral head in partial profile

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23
Q

AP Neutral gives you a better view of what kind of pathology?

A

Calcified deposits

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24
Q

AP Neutral Structures Demonstrated
Posterior part of __________ insertion which may
demonstrate small _________ ________

A

Supraspinatus, Calcified deposits.

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25
What is bursitis?
inflamed bursa, very painful
26
PA Oblique Y view can be either ____ or ____?
RAO OR LAO
27
What's another name for PA oblique Y-view?
Scapular Y view
28
What can be said about the PA Oblique (Y VIEW) Shoulder view? (SCAPUALAR Y)
-No superimposition of the body of the scapula over the bony thorax (Separate from the body of scapula from ribs) -* Vertebral and lateral borders superimposed * Superimposed humeral head and glenoid cavity - Patient rotated properly 45-60 degrees * Shaft of humerus superimposed with the body of the scapula - Arm resting down by patient’s side
29
Rotation of patient is how many degrees for Scapular Y /PA Oblique Y view?
Patient rotated properly 45-60 degrees
30
Structures demonstrated in PA Oblique Y-view _________ ______ directly superimposed over the "Y"
Humeral Head
31
Which borders of the scapula are superimposed?
The Vertebral (Medial) Border and the lateral (axillary) border are superimposed
32
If there is superimposition of the body of the scapula over the bony thorax in Scapular y-view, you have?
Over Rotation
33
Proper rotation of 45-60 degrees in Scap Y is shown by ?
Superimposed Humeral head and Glenoid Cavity The humeral head will superimpose the glenoid cavity with proper rotation
34
Why do we rotate the patient in Scapular Y VIEW/ PA OBLIQUE Y VIEW?
So that the scapula is free from superimposition of the of the bony thorax (rib)
35
For pa oblique y view, shaft of humerus superimposed with the body of the scapula demonstrates that
Arm resting down by patient's side which is the correct positioning
36
review on positioning for PA oblique Y view: Rotate them enough so that your thumb is on their medial border and your hand (on their scapula) becomes __________ to the IR.
Perpendicular to IR
37
The "y" is made up of the _________ ________ and __________ _________
acromion process and coracoid process
38
PA oblique y view is mainly done to check for ___________
Dislocation
39
When looking at a PA oblique y view of the shoulder in an x-ray, proof of an ___________ dislocation is demonstrated by the humeral head being under the coracoid process
anterior dislocation
40
When looking at a PA oblique y view of the shoulder in an x-ray, proof of an ___________ dislocation is demonstrated when the humeral head projected under the acromion process
posterior dislocation
41
AP oblique grashey method can be either ____ or ____
RPO or LPO
42
What are we looking for in an AP OBLIQUE (GRASHEY METHOD) ?
Open joint space between the humeral head and the glenoid cavity -NO SUPERIMPOSING OF THE HUMERAL HEAD * Glenoid cavity in profile The patient properly rotated 35 to 45 degrees toward the affected side to place the scapula parallel to the IR. Improper rotation: Under rotated. Joint space not opened
43
When doing the AP oblique grashey method, you are looking open joint space of the"
Open joint space between the Humeral head and the glenoid Cavity
44
What should be in profile in the Grashey Method?
1. The Glenoid Cavity in profile 2. Also no superimposing of the humeral head
45
What helps place the scapula perpendicular to the IR?
The patient is rotated properly at 35-45 degrees towards the affected side
46
When the patient is rotated properly at 35-45 degrees this helps the scapula to?
Place the Scapula parallel to IR
47
If there is improper rotation/under rotated, will the joint space be open or not?
The joint space not open
48
Proper Rotation will make the joint space?
Joint space will be open with proper rotation
49
What is proper rotation in AP oblique grashey method?
35-45 degrees toward the affected side
50
Rotating the patient 35-45 degrees in Grashey method toward the affected side makes the scapula
parallel to the IR
51
On an xray, how do you know you properly rotated patient for AP oblique Grashey method?
Glenoid cavity in profile And scapula parallel to the IR.
52
Improper rotation/Under rotation for AP oblique grashey method would be demonstrated by ?
the shoulder joint space (glenohumeral or scapulohumeral) would not be open
53
The neer method we look for?
THE HUMERAL HEAD PROJECTED BELOW THE AC JOINT
54
NEER METHOD tube angulation
ANGLED 10-15 DEGREES CAUDAD (15)
55
CR FOR NEER
CENTERED AT SUPERIOR ASPECT OF HUMERUS
56
Supero-inferior Axial Projection (LAWRENCE) (Axillary View) tube angulation
Angled 5 to 15 degrees through the shoulder joint and toward the elbow
57
According to Ingrassia, the key to this view is trying to get the axilla ...
as close to the IR as you can, have patient lean in, lower table
58
What should we look for in ap scapula view?
1. The lateral portion of the scapula is free from the superimposing of the Ribs 2. The scapula should be horizontal, Not oblique 3. IF OBLIQUE, the scapula is not placed in true AP to the IR 4. Scapula should be seen through the lung and rib
59
Why do we abduct our arm when taking an AP Scapula x ray?
We abduct the arm to remove/pulls the scapula from superimposing the ribs and lungs
60
What portion of the scapula should be free from the superimposition of the lungs?
The lateral portion
61
How should the scapula be placed when taking an AP SCAPULA X RAY?
The scapula should be placed horizontally and NOT OBLIQUE
62
Why should we not place the scapula oblique?
if we place the scapula oblique, the scapula will not be ina. true AP to the IR (TRUE AP TO IR= SCAPULA HORIZONTAL)
63
The scapula should be seen through?
Seen through the lung and the Ribs
64
What should be seen on the lateral scapula?
1. Lateral and medial border is superimposed 2. No superimposing of the scapula over the ribs (bony thorax) 3. Entire Scapula seen/ visible
65
What projection is the lateral scapula?
PA
66
When positioning patient for lateral scapula x ray? ARM POSITIONED FOR LATERAL SCAPULA?
Place patient In oblique position and rotate 45-60 degrees and center affected scapula to IR ARM SHOULD BE BEHIND PATIENT
67
What borders are superimposed in the Lateral border?
The Medial and Lateral Borders
68
What should be visible/seen when doing the Lateral Scapula x ray?
The entire scapula
69
What should the body of scapula not superimposed with?
Not superimposed with the ribs (bony thorax)
70
What should be seen when taking an AP Clavicle?
- Entire Clavicle (centered on image) - Achieving Uniform density -Must include the (medial end) SC JOINT AND (lateral end) AC Joints
71
What must be seen in the AP AXIAL CLAVICLE? (ANGLED 15-30 DEGREES cephalad towards head) known as AP SHOOT UP
-Entire Clavicle ( with AC AND SC JOINTS) -Clavicle in a horizontal placement -Most clavicle projected above the Ribs -if not, tube was not angled enough
72
Why do we angle the tube in the AP AXIAL Clavicle X-ray?
for the clavicle to be projected above the ribs
73
If the clavicle or most of it is not projected above the ribs then?
It means there was not enough tube angulation
74
If you were to keep the tube perpendicular and not angled at 15-30 degrees then?
The clavicle is superimposed of the part of the lung apices
75
What should be seen in the AC JOINTS with weights and without weights?
1. Both right and left A-C Joints 2. Some soft tissues 3. No rotation or leaning- can cause ac to be clipped from image -BOTH MARKERS
76
SID FOR AC JOINTS and
72 SID/ 14x17
77
Why dont we do the weights first the taking the AC joint x ray?
It will take too long for AC JOINTS TO GO UP ITS PLACE AGAIN
78
Why do we AC JOINT WITHOUT WEIGHTS first?
This helps to allow AC joint in a relaxed state
79
Why do we do AC JOINT WITH WEIGHTS last?
Weight will increase the stress on the AC JOINT -Also with weights help to identify joint separation