forearm Flashcards
1
Q
- Fully extend elbow, and
supinate hand. - Humeral epicondyles
parallel to cassette. - Best demonstrate the
humeral epicondyles in
profile.
A
FOREARM AP
2
Q
- Thumb side of the hand
must be up. - Best demonstrates the
olecranon process. - Demonstrate the fat stripe
of the wrist and fat pad of
the elbow. - Demonstrate the
humeral epicondyles
superimposed on each
other.
A
FOREARM LATERAL
3
Q
- Fully extend elbow
- Supinate hand
- Humeral epicondyles
parallel to IR. - Demonstrate an open
elbow joint space. - Best demonstrates the
humeral epicondyles in
profile.
A
ELBOW AP PROJECTION
4
Q
- Humeral epicondyles
perpendicular to IR. - Best demonstrate the
olecranon process. - Best demonstrate the
posterior fat pad
(visualization is a
common indication of
elbow joint pathology). - Demonstrate any tear
drop sign.
A
ELBOW LATERAL
5
Q
- Fully extend elbow
- Pronate hand
- Rotate entire upper
extremity (including hand)
to place elbow joint in a
45° medial (internal)
oblique position. - Best demonstrate the
coronoid process in
profile. - Trochlea in profile
- Olecaranon process of
ulna should appear
seated in olecranon
fossa of humerus.
A
ELBOW AP OBLIQUE
MEDIAL/INTERNAL ROTATION
6
Q
- Supinate hand
- Rotate entire upper
extremity (including hand)
to place elbow joint in a
45° lateral (external)
oblique position. - Best demonstrate the
radial head, tuberosity
and neck in profile.
A
ELBOW AP OBLIQUE
LATERAL/EXTERNAL ROTATION
7
Q
- Elbow acutely flexed with
fingertips resting on
shoulder. - Epicondylar plane parallel
to image receptor.
A
AP ELBOW IN ACUTE FLEXION
JONES METHOD
8
Q
– perpendicular to 2 inches
(5cm) superior to the
olecranon process
A
Distal Humerus
9
Q
– perpendicular to the
flexed forearm
approximately 2 inches
(5cm) distal to the
olecranon process.
* Performed if the elbow
is flexed more than 90°
* This position is used
primarily to
demonstrate injuries to
the olecranon process
A
Proximal Forearm
10
Q
- Elbow flexed 90° if
possible - Hand pronated.
- 45° towards shoulder.
A
RADIAL HEAD
ELBOW AXIAL LATEROMEDIAL PROJECTIONS
TRAUMA AXIAL LATERALS
COYLE METHOD
11
Q
- Elbow flexed only 80
degrees from extended
position. - Hand pronated.
- 45° from shoulder into
mid elbow joint
A
CORONOID PROCESS
ELBOW AXIAL LATEROMEDIAL PROJECTIONS
TRAUMA AXIAL LATERALS
COYLE METHOD