What criterion is used to determine whether the AP axial clavicle has been correctly positioned?

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missing evolve m4 s1&2, book, anatomy, and power points

Terms in this set (144)

The clavicle articulates medially with the:

Sternum

With what portion of the scapula does the humeral head articulate?

Glenoid fossa

An impacted fracture of the posterolateral aspect of the humeral head with dislocation is called a:

Hill-Sachs defect

Which of the following conditions is a form of arthritis marked by progressive cartilage deterioration in synovial joints and vertebrae?

Osteoarthritis

The scapular notch is located on the:

Superior border

The scapula is classifies as a _______ bone.

Flat

The clavicle is classified as a _____ bone.

Long

Which of the following actions are technical considerations of shoulder girdle radiography?
(1) Removing artifacts
(2) Using close collimation
(3) Performing exams in the position that maximizes patient comfort

1, 2, and 3

What are the central ray angle and direction for the AP axial projection of the shoulder?

Humeral epicondyles positioned superimposed and perpendicular to the image receptor

Which of the following options describes the central ray angle and direction for the inferosuperior axial projection (Lawrence method) of the shoulder?

Horizontal central ray angled 15 to 30 degrees medially

Which of the following projections demonstrates the intertubercular groove of the proximal humerus?

Tangential projection, (Fisk modification)

For a PA oblique (scapular Y) projection of the right shoulder, the patient must be placed in a:

45- to 60-degree RAO position

What is the correct position with which to obtain a lateral projection of the left scapula?

45- to 60-degree LAO

Which of the following projections will demonstrate the lesser tubercle in profile on the glenoid fossa?

AP projection, internal rotation position

A breathing technique (low mA with a long exposure time) might be used on the:
(1) AP clavicle
(2) Transthoracic lateral (Lawrence method)
(3) AP scapula

2 and 3 only

Which positioning maneuver places the lesser tubercle directed anteriorly on the inferosuperior axial projection (Lawrence method)?

External rotation of the upper limb

All of the following actions are procedural steps for the AP projection of the acromioclavicular (AC) joints except:

Placing the patient supine to maximize comfort

A radiograph of an AP oblique (Grashey method) of the shoulder demonstrates overlap of the humeral head on the glenoid. What was the likely cause of this image's appearance?

Patient underrotated

Which of the following evaluation criteria are used to evaluate the AP axial projection of the clavicle?
(1) Most of the clavicle projected above the ribs and scapula, with the medial end overlapping the first or second rib
(2) Clavicle presented in a horizontal placement
(3) Entire clavicle included along with the AC and SC joints

1,2, and 3

The AP oblique projection (Apple method) can be used to demonstrate:

A loss of articular cartilage in the shoulder

What special projection of the shoulder demonstrates the supraspinatus outlet?

Tangential (Neer method)

All of the following are required to perform the AP axial oblique projection (Garth method) of the shoulder, except:

The central ray is angled 45 degree cephalad

Which articulation connects the shoulder girdle with the upper limb?

Scapulohumeral joint

What type of joint is the shoulder joint?

Synovial, diathrotic, ball and socket

Where is the scapular spine located?

Posterior border

How many articulations are formed with the clavicle?

2

Displacement of a bone from the joint space is termed:

Dislocation

A malignant tumor of the shoulder girdle is called:

Chondrosarcoma

All of the following terms are used to refer to the articulation between the scapula and proximal humerus except:

Humeroglenoidal joint

The general body position used for shoulder girdle radiography should:
(1) Maximize patient comfort
(2) Maximize object-to-image receptor distance
(3) Minimize the risk of motion

1 and 3 only

On the AP projection of the shoulder in internal rotation, the plane of the humeral epicondyles is positioned:

Perpendicular with the image receptor

For an injured left shoulder to be demonstrated with the use of the PA oblique (scapular Y) projection, the patient must be placed:

In a 45- to 60-degree LAO position

Which of the following projections is useful in demonstrating the Hill-Sachs defect?

Inferosuperior axial (Lawrence)

In the AP projection of the scapula, the affected upper limb is:

Abducted to a right angle

What are the angle and direction of the central ray for the PA axial projection of the clavicle?

15 to 30 degrees caudad

The humeral head and greater tubercle are demonstrated in profile on the:

AP projection of the shoulder in external rotation

What anatomy is demonstrated on the lateral scapular projection when the upper limb is slightly abducted, the elbow flexed, and the forearm resting on the posterior thorax?

The acromion and coracoid process

How is the lesser tubercle demonstrated on a correctly positioned inferosuperior axial projection (Lawrence method)?

In profile, directly anteriorly

All of the following are procedural steps for the transthoracic lateral projection (Lawrence method), except:

Externally rotating the affected arm to place the humeral epicondyles parallel to the image receptor

What criterion is used to determine whether the AP axial clavicle has been correctly positioned?

Most of the clavicle is projected above the ribs and scapula, with the medial end overlapping the first or second rib.

A loss of articular cartilage in the scapulohumeral joint might be demonstrated by using the:

AP oblique (Apple method)

Which of the following projections is used to demonstrate a Hill-Sachs defect?
(1) Inferosuperior axial (West Point method)
(2) AP axial (Stryker "notch" method)
(3) AP axial shoulder

1 and 2 only

What are the central ray angle and direction for the AP axial oblique projection (Garth method)?

45 degrees caudad

A patient is referred for a tangential projection (Neer method) of the right shoulder/proximal humerus. What patient position is required to obtain this image?

45- to 60-degree RAO

What are the central ray angle and direction for the AP axial projection of the shoulder?

35 degrees cephalad

What is the proper position of the upper limb for the inferosuperior axial projection (Rafert method)?

Exaggerated external rotation

Which projection is used to demonstrate the coracoacromial arch of outlet to diagnose shoulder impingement?

Tangential (Neer method)

An injury to the ulnar collateral ligament that affects the first metacarpophalangeal (MCP) joint might be demonstrated with the:

AP projection of the first MCP joint (Folio method)

Which of the following methods is used to demonstrate the trapezium carpal bone?

PA axial oblique (Clements-Nakayama method)

In the PA/PA axial projections scaphoid radiographic series (Rafert-Long method), the wrist is positioned:

In extreme ulnar deviation

All of the following positions are used in imaging the lateral projection of the radial head except:

hand in ulnar deviation

For the PA projection of the proximal forearm with the elbow in acute flexion, the central ray is directed:

perpendicular to the flexed forearm

What is the proper position of the hands for the AP oblique projection (Norgaard method)?

45-degree semisupination

Which projection is used to demonstrate the changes of early rheumatoid arthritis in the hands?

AP oblique projection (Norgaard method)

A radiograph of a PA oblique projection of the hand in lateral rotation reveals excessive superimposition of the metacarpals. What is the most likely reason for this radiographic appearance?

excessive lateral rotation of the hand

The lateral bone of the forearm is the:

Radius

The portion of the humerus that articulates with the head of the radius is the:

Capitulum

A fracture of the distal radius with anterior displacement is called a:

Smith's fracture

Which of the following is a benign bone tumor?

Enchondroma

Which bone disease is defined as an inflammation of bone resulting from pyogenic infection?

Osteomyelitis

The carpal bone that is located in the proximal row between the lunate and pisiform is the:

Triquetrum

The distal end of the radius is called the:

Styloid Process

The olecranon fossa is located on the:

Distal posterior humerus

Which of the following actions are technical considerations of upper limb radiography?
(1) Removing a ring on a hand examination
(2) Radiograph each side separately for a bilateral examination
(3) Performing exams in a supine position to maximize patient comfort

1 and 2 only

All of the following are required for a lateral projection of the elbow, except for:

Pronation of the hand

In the PA projection of the wrist, the hand is:

Pronated with fingers flexed

On a PA oblique projection of the hand with the fingers flexed and resting on the image receptor, the:

Joint spaces will be closed and the phalanges foreshortened

For the axiolateral projection of the radial head (Coyle method), the elbow is flexed:

90 degrees

All of the following projections require the humeral epicondyles to be positioned parallel to the image receptor except the:

Axiolateral projection (Coyle method) of the ulnar coronoid process

Which of the following projections will demonstrate the carpal canal?

Tangential projection (Gaynor-Hart method)

The PA axial projection (Stecher method) is used to demonstrate the:

Scaphoid carpal

Which positioning maneuver places the coronoid process of the ulna in profile?

45-degree medial rotation of the elbow

All of the following are procedural steps for the anteroposterior projection of the humerus except:

Internally rotating the limb to place the humeral epicondyles perpendicular to the image receptor

A radiograph of an AP projection of the elbow demonstrates the proximal radius and ulna slightly separated. What is the most likely reason for this radiographic appearance?

Lateral rotation

Which of the following criteria is used to determine whether the hand and wrist were correctly positioned for the lateral projection of the elbow?

Radial tuberosity facing anteriorly

Which of the following methods is used to demonstrate the first metacarpophalangeal (MCP) joint?

PA (Folio method)

What is the proper position of the wrist for the AP oblique projection in medial rotation position?

Semisupinated at 45 degree angle with IR

All of the following criteria are used to evaluate the AP projection of the humerus except:

Lesser tubercle in profile

Which carpal bone is located in the distal row and articulates with the third metacarpal?

Capitate

The proximal radioulnar joint is an articulation between the:

Radial head and radial notch of the ulna

What is the name of the small depression located on the anterior aspect of the distal humerus?

Coronoid fossa

Which essential projection of the elbow will provide a profile image of the olecranon process?

Lateral

The hand consists of how many bones?

27

At the lateral (thumb) side of the hand, the digit is called the:

first digit

The first bone located on the proximal row and lateral side of the wrist is called the:

scaphoid

How many phalanges are there in the thumb?

2

The head of the radius articulates on the medial side with the:

radial notch

How is the hand positioned to perform a radiograph of a finger (digit) is:

pronated

The most common oblique projection of the second through fifth digits is:

PA with lateral rotation

The central-ray angulation for the fan lateral projection of the hand is:

0 degrees

For a lateral projection of the wrist, the elbow must be flexed:

90 degrees

The PA oblique projection of the wrist in lateral rotation requires a wrist angulation (oblique) of:

45 degrees

To visualize the scaphoid the wrist should be in _____ deviation.

ulnar

The IR must be elevated how many degrees for the PA axial projection of the wrist (Stetcher method)?

20 degrees

Which of the following methods is used to demonstrate the carpal canal?

Gaynor-Hart (tangential)

For the AP projection of the forearm, the hand is:

supinated

There are ______ metacarpals found in the upper limb.

5

Each proximal phalanx articulates with a ________.

Metacarpal

The _____ articulates with the trochlea.

Trochlear notch

The other name for the scaphoid is ______.

Navicular

The ________ is a depression located on the anterior surface of the distal humerus.

Coronoid fossa

The _____ bone has its head located at the proximal end.

radius

The first _________ joint is the only saddle joint in the body.

Carpometacarpal

The ______ carpal is located in the proximal row, lateral side.

scaphoid

____ anatomic neck
____ coronoid process
____ radial notch
____ trochlea
____ olecranon process
____ ulnar notch
____ lesser tubercle
____ trochlear notch
A. Humerus
B. Ulna
C. Radius

_A_ anatomic neck
_B_ coronoid process
_B_ radial notch
_A_ trochlea
_B_ olecranon
_C_ ulnar notch
_A_ lesser tubercle
_B_ trochlear notch

What happens to the radius and ulna when you pronate the hand?

They cross

What is the most proximal part of the ulna?

Olecranon process

If there is a scaphoid fracture, where on the hand would the patient experience tenderness?

Anatomic snuff box

In anatomic position, the most lateral bone of the forearm is?

radius

Which projection shows the coronoid process free of superimposition?

medial oblique elbow

The AP elbow projection does not include the distal ulna?

true

The lateral elbow position is a mediolateral projection

false

Which structure is located on the medially on an AP elbow projection?

trochlea

To do a medial oblique projection of the elbow:

pronate the hand

The capitulum articulates with the radial head

true

Which structure is not on the ulna?

capitulum

The radius is medial to the ulna.

false

The radial tuberosity is distal to the base of the ulna.

true

An AP elbow projection does not include the capitulum and trochlea.

false

The olecranon fossa is located on:

humerus

The humerus and the forearm do not need to be in the same plane for elbow projections.

false

Both styloid processes in the forearm are located on the proximal portion of the bones.

false

Which projection shows the radial head free of superimposition?

lateral oblique elbow

The hand should be pronated for an:

AP oblique projection with medial rotation

The trochlea is on the proximal ulna.

false

What is the proper position for an AP forearm projection?

hand supinated

To insure a good AP elbow projection:

have the humerus in the same plane as the forearm and center the joint

Always pronate the hand when doing an AP forearm projection.

false

The capitulum articulates with what?

radial head

How can you tell that the hand was supinated on an AP forearm film?

the forearm bones will not cross each other

A hinge type of joint describes the:

humeroradial joint

The head of the radius is proximal or distal?

proximal

The distal radioulnar joint is between the _____ notch of the radius and the head of the ulna

ulnar

What is another name for the trochlear notch?

Semilunar notch

The radial notch articulates with what?

radial head

What is the most distal part of the ulna?

ulnar styloid process

What structure is not on the ulna?

capitulum

The radius is medial to the ulna?

false

The radial tuberosity is distal to the base of the ulna?

true

The trochlea is on the proximal ulna?

false

The second digit of the normal adult hand contains how many interphalangeal joints?

2

The pointed extensions on the distal ends of the radius and ulna, which serve for ligament attachments with the wrist bones are called the?

ulnar and radial styloid processes

The hook is a characteristic extension found on the wrist bone called the?

hamate

The depression on the proximal humerus separating the greater and lesser tubercles is called?

intertubercular groove

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How does the appearance of the clavicle differ in the axial projections compared to the AP PA projection?

How does the appearance of the clavicle differ in the axial projections compared with the AP/PA projections? Clavicle is more horizontal and projected free of bony superimposition in the axial projections.

What are the central ray angle and direction for the AP axial projection of the shoulder?

Central ray: The central ray should be directed to the scapulohumeral joint perpendicular to the image receptor. For an AP Axial, a cephalic angle of 35 degrees.

How many degrees should a to be angled for an AP axial projection of the clavicle on an average patient?

The central-ray angle for an AP axial projection of the clavicle when performed on a patient in the supine position is 15-30 degrees caudal.

What projections will be performed for an examination of the clavicle?

Two anteroposterior (AP) radiographs of the clavicle (with x-ray beam directed at different angles) are appropriate to assess clavicle mid-shaft fractures acutely and to follow these fractures during healing. The clavicle series includes AP in the frontal or thoracic plane and AP with 20 to 30-degrees cephalic tilt.