SHOULDER GIRDLE.
What position/projection BEST DEMONSTRATES shoulder dislocation?
1. Y View
3. AP Axial Projection
CR location for AP AXIAL CLAVICLE if patient IS LORDOTIC?
CR angled 0-15 degrees cephalad, mid clavicle shaft
What bones form the Shoulder Girdle? (4 bones)
1. Clavicle
2. Scapula
3. coracoid process
4. acromion
CR location for INFERIOR-SUPERIOR AXIAL PROJECTION?
Horizontal through axilla, 15-30 degrees cephalad.
How many bones are there in the Foot?
26 Bones
In which position should the patient be placed to demonstrate right shoulder in the PA OBLIQUE SCAPULAR "Y" PROJECTION?
RAO
CR location for AP AXIAL CLAVICLE if patient IS NOT LORDOTIC?
CR angled15-30 Degrees cephalad, mid clavicle shaft.
What joints make up the shoulder girdle? (4 Joints)
CR Location for SUPERIOR-INFERIOR AXIAL PROJECTION?
CR angled 5-15 degrees through shoulder joint, toward elbow.
How many tarsal bones are in the foot?
7 tarsal bones
45-60 degrees.
In the lateral projection of the scapula, which of the following are true?
1. vertebral and axillary border of the scapula are superimposed.
2. acromion and corocoid process are demonstrated
3. Patient may be radiographed in recumbent or erect positons.
All 3 are true.
Why would we do a PA clavicle projection?
To bring anatomy in close contact to IR, reduce OID.
A shoulder image you just completed is slightly underexposed, what adjustment should you make?
increase mAs 30%
List the Tarsal Bones
1. medial cuneiform
2. intermediate cuneiform
3. lateral cuneiform
4. navicular
5. cuboid
6. talus
7. calcaneus.
How do you know that you have proper positioning on a PA OBLIQUE SCAPULAR "Y" PROJECTION?
Humeral shaft and scapular body superimposed.
How do you know that you have proper positioning on an AP Scapula?
1. lateral scapula free from ribs
2. acromion to inferior angle of scapula in profile
3. STOP SIGN draws scapula laterally.
What is BEST DEMONSTRATED on an INFERIOR-SUPERIOR AXIAL PROJECTION?
Lesser tubercle in profile.
What is the Largest/Smallest cuneiform bone?
Largest: Medial Cuneiform
Smallest: Intermediate Cuneiform.
What is the KVP range for shoulder radiography?
70-85 KVP
how do you know that you have proper positioning on a Lateral Scapula?
1. Lateral/medial scapula superimposed
2. acromion free from superimposition
3. no superimposition of scapula over ribs.
What is BEST DEMONSTRATED on a SUPERIOR-INFERIOR AXIAL PROJECTION?
1. lesser tubercle in profile
2. scapulohumeral joint
3. AC joint through humeral head.
How much do we angle the CR for an AP Axial Foot Projection?
Perpendicular, CR angled 10 degrees towards heel (cephalad) enters base of 3rd metatarsal.