Test 1 review questions for Elbow Flashcards
Carrying angle is determined by which joint?
Humeroulnar
Which is more common: Cubitus Varus or valgus
Varus
Which epicondyle is frequent fx of children?
LAteral
Crepitation of elbow can be caused by..
Synovial or bursae thickening fx OA
WHat covers olecranon process?
Bursa, triceps tendon, apopneurosis
What fills the olecranon fossa?
Fat, portion of triceps, apopneurosis
Which elbow epicondyle is smaller and less defined?
Lateral
Which supracondylar line of humerus is longer and more defined?
Lateral
What are the borders of the isosceles triangle of the elbow?
Medial epi, lateral epi, olecranon process
What is the location of the radial head?
In a visible depression of the skin medial and posterior to the wrist extensor muscle group
If a pt. can fully supinate and pronate their forearm, about how much of the radial head is visible?
3/4
The radius articulates with what structures?
Capitellum proximally and ulnar notch distally
What can pain around radial head indicate?
Synovitis or OA
What are the conditions under which the ulnar N is usually injured?
Direct trauma or secondary to supracondylar or epicondylar fx
What structure does the wrist flexor pronator muscle group originate from?
Medial Epicondyle
What is one basic stabilizer of the humero-ulnar articulation?
MCL
What are the attachments of the MCL?
Medial epicondyle and extends to the the the medial aspect of the ulnar’s trochlear notch
What does enlargement of supracondylar lymph nodes usually imply?
Hand or forearm infection
Origins of 3 heads of triceps
Long head- Infraglenoid tubercele of scapula
Lateral Head: Post. humerus, sup. to radial groove
Medial Head- Post humerus, inf. to radial groove
Insertion of 3 triceps heads
Proximal end of the olecranon of the ulna and fascia of forearm
Only muscle in the body that extends from the distal end of one bone to the distal end of another bone?
Brachioradialis
Which wrist extensor is usually involved in tennis elbow?
Ext. Carpi Radialis Brevis.
Attachments of LCL
Lateral epi. to side of annular ligament
What type of stress causes tenderness and sprain of LCL?
Vargus
What ligament cups and holds the head of the radius into place?
Annular
LAteral border of cubital fossa
Brachioradialis
Medial border of cubital fossa
Pronator Teres
Structures that pass through cubital fossa
Biceps tendon, brachial artery, medial and musculocutaneous NN
Where can brachial artery pulse be found?
Medial to biceps tendon
What muscle does the median N pierce as it enters the forearm on the way to the hand
Pronator teres
Where is the location of musculocutaneous N?
Deep under brachioradialis, about 1-2 inches above line of elbow joint
WHat movement can cause tenderness and sprain of the ant. joint capsule of the cubital fossa?
Hyperextension
How many ROMs are there in the elbow?
4
How many reflexes evaluate the integrity of the nerve supply to the elbow?
3
How many sensation areas are located around the elbow joint?
4
