Radiology of the Upper Limb

Question 1

break in the anatomic neck of humerus?

Answer 1

quadrangular space messed up

Question 2

what is more prominent when externally rotate the humerus in AP view

Answer 2

glenoid
-looking for imperfection/fracture, etc.

no labrum (soft tissue)

can also see the intertubercular groove a little bit

Question 3

Y-view

Answer 3

used to assess the relationship between the glenoid cavity and head of humerus

protracted scapula

Question 4

coracoacromial ligament

Answer 4

over the supraspinatus

subacromial bursa superior to supraspinatus

can get calcification here - calcific tendinitis

• of supraspinatus
• its brittle > NO GOOD

Question 5

axillary view?

Answer 5

good for assessing relationship of humeral head to glenoid cavity
-for anterior vs. posterior dislocation

Question 6

MRI of shoulder?

Answer 6

**views used to best assess rotator cuff muscles

axial
oblique coronal - in line with acromion
oblique sagittal - 90% to acromion
-look at glenoid cavity

in reference to scapula

Question 7

planes of reference in MRI?

Answer 7

glenohumeral joint

oblique coronal - glenohumeral joint
oblique sagittal - perpendicular to oblique coronal

Question 8

most injured rotator cuff?

Answer 8

supraspinatus muscle

Question 9

full thickness supraspinatus tear?

Answer 9

inject contrast to joint cavity

if it makes it to the subacromial and subdeltoid bursa, then you have a tear

Question 10

oblique sagittal?

Answer 10

like a Y-view X-ray

-but just a single slice

Question 11

axial MRI

Answer 11

used for visualizing the glenoid labrum

**image viewed from below

Question 12

axial MRI mid-humerus

Answer 12

can view anterior and posterior compartments of arm

can assess fracture, tumor, bruise

Question 13

axial views?

Answer 13

always from BOTTOM

Question 14

medial intermuscular septa

Answer 14

continuous with axillary sheath

Question 15

lateral elbow film

Answer 15

see stuff

Question 16

A-P elbow film

Answer 16

see stuff

Question 17

evulsion of olecranon?

Answer 17

triceps

Question 18

evulsion of coronoid?

Answer 18

brachialis

Question 19

axial MRI mid-forearm

Answer 19

can see anterior and posterior compartments of forearm

Question 20

brachioradialis

Answer 20

flat muscle
lateral
between anterior and posterior compartments

Question 21

interosseous membrane

Answer 21

between radius and ulna

Question 22

flexor pollicic longus

Answer 22

right on the radius

Question 23

first interosseous space

Answer 23

first dorsal interosseous muscle

?

Question 24

second interosseous space

Answer 24

?

?

Question 25

sesamoid bones

Answer 25

so you can flick your bic!

Question 26

age assessment of hand film?

Answer 26

look for growth plates and wider spaces between carpal bones

Question 27

most often dislocated bone?

Answer 27

lunate

assess with lateral film of hand

Question 28

scaphoid fracture

Answer 28

can get a non-union
-avascular necrosis

takes a long time to heal

Question 29

mallet finger

Answer 29

pulled down by flexor digitorum profundus

-avulsion fracture

Question 30

boxers fracture

Answer 30

usually to 5th metacarpal fracture

Question 31

digital subtraction film

Answer 31

give you the negative

Question 32

superficial palmar arch

Answer 32

distal

Question 33

deep palmar arch

Answer 33

proximal