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UNC MSK Course Day 2 Lab XR
UNKNOWNS
(for self study)
Anatomy, names?
Acromion
AC joint
Gr. Tuberosity
Coracoid
Glenoid
Anatomy?
Axillary view
AC Joint
Glenoid
Acromion
Pathology?
Bilateral Clavicle fx
Bilateral Clavicle fx
Pathology?
Anterior glenohumeral (shoulder) dislocation.
How do we know it is anterior?
Anterior glenohumeral (shoulder) dislocation.
The fact that we see the humeral head in profile tells us it is externally rotated (it would be internally rotated if the patient was dislocated posteriorly.)
An internally rotated humeral head looks like a “light bulb”.
Anterior glenohumeral (shoulder) dislocation.
The fact that we see the humeral head in profile tells us it is externally rotated (it would be internally rotated if the patient was dislocated posteriorly.)
An internally rotated humeral head looks like a “light bulb”.
Anterior glenohumeral (shoulder) dislocation.
We can also obtain an “axillary view” and see that the humeral head is anterior to the glenoid.
Anatomy?
Anatomy?
Trapezius
Acromion
Supraspinatus
Supspinatus tendon
Glenoid
Subscapularis
Deltoid
Pathology?
Rotator Cuff tear
(tendon should be black)
Anatomy?
Anatomy?
Olecranon/coronoid fossa
Medial epicondyle
Capitellum
Trochlea
Radial Head
Radial Tuberosity
Anatomy?
Anatomy?
Olecranon/coronoid fossae
Radial head
Coronoid process
Olecranon
Pathology?
Supracondylar fracture of the humerus in a child
Pathology?
Posterior dislocation of elbow
Pathology?
Proximal ulna fracture
With fracture subluxation of radial head
This combination of injuries is known as a “Monteggia fracture.”
Pathology?
Elbow fracture dislocation
Fracture of the olecranon with anterior dislocation of radius and ulna.
Air in soft tissues indicates that it is an “open” fracture.
Pathology?
Fracture of the radius and ulna
Pathology?
Distal radial “buckle” or “torus” fracture.
The bone has “crumpled” rather than broken.
Distal radial “buckle” or “torus” fracture.
The bone has “crumpled” rather than broken.
Anatomy?
Anatomy?
Metacarpal head
Hamate
Pisiform
Triquetrium
Ulnar Syloid
Lunate
Sesamoid bones
Capitate
Scaphoid
Radial Syloid
Anatomy?
Anatomy?
Lunate
Anatomy?
Scaphoid
Anatomy?
Capitate
Anatomy?
Pisiform
Pathology?
Scaphoid Fracture
Pathology?
Scapholunate dissociation
The scapholunate ligaments are torn allowing separation of the two bones like a gap between the front teeth (“Terry Thomas” or “Letterman’s sign”).
The spacing between all of the carpal bones should be the same.
Pathology?
Hairline fracture 3rd metacarpal shaft
Pathology?
Pathology?
Unstable elbow dislocating upon extension.
Note: fracture fragment from coronoid process
Foggy Alaskan valley near Hubbard glacier