Elbow

Question 1

(4) standard views of the elbow

Answer 1

AP
Lateral
Oblique
Jones (Tangential)

Question 2

the forearm is ___ in AP view

Answer 2

A/P

Question 3

In lateral view the elbow must be_____

Answer 3

flexed 90 degrees

- and thumb up

Question 4

Name the two ways to position the arm in oblique view

Answer 4

1. just forearm pronated

2. forearm and humerus slightly pronated

Question 5

the oblique view is distinguished bc of the :____

Answer 5

radius and ulna cross

Question 6

Jones (tangential) view evaluates the ___

Answer 6

olecranon process

Question 7

The ulna contacts the ____ on the humerus

Answer 7

trochlea

Question 8

The radius contacts the ___ on the humerus

Answer 8

capitulum

Question 9

The radial head view evaluated the ____ & ___

Answer 9

radial head and capitellum

-via tube tilt

Question 10

What view gives a more unobstructed view of the radial head/ capitulum

Answer 10

radial head view

Question 11

A long bone study on the elbow would be done to evalvuate the ___ & ___

Answer 11

radius and ulna

Question 12

___ is the last center of the humerus to fuse

Answer 12

medial epicondyle

Question 13

____ appears “sliver like” before secondary ossification

Answer 13

lateral epicondyle

Question 14

Order of fusion of the elbow

Answer 14

capitellum–> radial head –> medial epicondyle –> trochlea –> olecranon –> lat. epicondyle

(come rub my tree of love)

Question 15

Radial head appears at ___ y/o

and fuses at ___ y/o

Answer 15

5years old

fuses: 16 y/o

Question 16

Olecranon process appears at ___ yrs

fuses by ___ yrs

Answer 16

9 yrs

fuses: 15 yrs

Question 17

Name the (3) lines of measurement of the elbow

Answer 17

carrying angle
radiocapitellar line
humeral shaft line (pediatric)

Question 18

Carrying angle is drawn through:

Answer 18

1st: long axis of the humerus
2nd: long axis of the ulna

Question 19

carrying angle should be btw __-___ degrees

Answer 19

154-178 degrees

Question 20

alterations of the carrying angle can indicate: __ or ___

Answer 20

fx or dysplasia

Question 21

Where do you draw the lines for the radiocapitellar line

Answer 21

lateral view:
Line 1: through center of the radial shaft
Line 2: extend through capitellum

• line should intersect the center of the capitellum at any angle of elbow flexion / extension

Question 22

Failure to intersect the center of the capitellum indicates :____

Answer 22

radial head dislocation or fx

Question 23

what pop would you do a coronoid line on?

Answer 23

pediatric

Question 24

______: an arc-like line is drawn along the coronoid fossa and extended distally . line shoudl barely intersect anterior to the capitellar epiphysis

Answer 24

coronoid line

Question 25

Alteration in the coronoid line may indicate ____

Answer 25

displacement of the epiphysis

Question 26

where is the line drawn for the humeral shaft line

Answer 26

Line 1: anterior humeral shaft

• extend through the capitellar epiphysis
• should intersect middle 1/3 of epiphysis

Question 27

Improper intersection of the humeral shaft line may indicate :

Answer 27

supracondylar fx

or displaced epiphysis

Question 28

_____: lig. that extends from the distal humerus forming a foramen through whih the median N passes

Answer 28

Struther’s lig

Question 29

What N passes through the foramen that the struther’s lig makes

Answer 29

median N

Question 30

______: lack of bone separating olecranon and coronoid fossae of humerus

Answer 30

Olecranon foramen

Question 31

____: sesamoid bone in the tricep tendon

Answer 31

patella cubiti

Question 32

_____:seen as lucency in prox radial shaft when seen “en face”

Answer 32

radial tuberosity

Question 33

trabecular pattern forms a “___”

Answer 33

chevron Sign

Question 34

humeral, ulnar, and radial nutrient canal all point to ____

Answer 34

toward the elbow

Question 35

CT is used for the elbow when ____ involvement is suspected

Answer 35

osseous

Question 36

MRI will be used for the elbow when ____ is involved

Answer 36

Soft tiss