Question 1

&#10;&#10;-Refer to the figure. Name the view.&#10;A) Anteroposterior (AP) hand&#10;B) AP wrist&#10;C) Posteroanterior (PA) hand&#10;D) PA wrist

Accepted Answer

PA wrist&#10;

Question 2

&#10;&#10;-Refer to the figure. Assess the geography of the wrist. This patient has:&#10;A) Negative ulnar variance&#10;B) Positive ulnar variance&#10;C) Neutral ulnar variance

Accepted Answer

Negative ulnar variance occurs when the ulna is shorter than the radius at the wrist joint, which is indicated in the figure.

Question 3

&#10;&#10;-Carpal alignment is assessed by&#10;A) Ulnar and radial deviation views&#10;B) Clenched-fist functional view&#10;C) Inscribing three arcs on PA view&#10;D) Cineradiography

Accepted Answer

Inscribing three arcs on a PA (posteroanterior) view is a method used to assess carpal alignment. This involves drawing three smooth arcs that should intersect specific points of the carpal bones, helping to identify any abnormalities or misalignments in the wrist structure.

Question 4

&#10;&#10;-Refer to the figure. Name the imaging modality and the plane.&#10;A) MRI, coronal plane&#10;B) MRI, sagittal plane&#10;C) CT, coronal plane&#10;D) CT, sagittal plane

Accepted Answer

The imaging modality is MRI, identified by its detailed soft tissue contrast, and the plane is coronal, which divides the body into anterior and posterior (front and back) portions.

Question 5

&#10;&#10;-Refer to the figure. The arrow is pointing to a:&#10;A) Tear of the triangular fibrocartilage complex&#10;B) Fracture of the scaphoid&#10;C) Avascular necrosis of the lunate&#10;D) Fracture of the capitate

Accepted Answer

The answer of  &#10;&#10;-Refer to the figure. The arrow...

Question 6

&#10;&#10;-Refer to the figure. The mechanism of injury that most likely produced the injury is:&#10;A) Repetitive thumb abduction-adduction&#10;B) A blow to the hand&#10;C) Fall on an outstretched hand&#10;D) Punching with a fisted hand

Accepted Answer

The mechanism of injury described, "fall on an outstretched hand," is a common cause for wrist injuries, including fractures of the distal radius, which is often what is implied by the context of such a question. This mechanism can cause an axial load to be transmitted up the forearm, leading to injury.

Question 7

&#10;&#10;-Refer to the figure. Name the view.&#10;A) Ulnar deviation&#10;B) PA wrist&#10;C) Radial deviation&#10;D) Clenched fist

Accepted Answer

The answer of  &#10;&#10;-Refer to the figure. Name the...

Question 8

&#10;&#10;-Refer to the figure. The arrow indicates the capitate is moving into an interval between the scaphoid and the lunate. This sign is diagnostic for:&#10;A) Dynamic instability&#10;B) Tear of the triangular fibrocartilage complex&#10;C) Avascular necrosis of the lunate&#10;D) Fracture of the distal radius

Accepted Answer

Dynamic instability in the wrist involves abnormal movement between the carpal bones, indicated by the capitate moving into the interval between the scaphoid and the lunate. This can be a sign of ligamentous injury or disruption leading to instability.

Question 9

&#10;&#10;-The eponym Colles' fracture refers to the commonly occurring fracture at the:&#10;A) Proximal carpal row&#10;B) Distal carpal row&#10;C) Distal ulna&#10;D) Distal radius

Accepted Answer

Colles' fracture specifically refers to a type of fracture of the distal radius in the forearm with dorsal (posterior) displacement of the wrist and hand.

Question 10

&#10;&#10;-The diagnosis of carpal tunnel syndrome is sometimes augmented by imaging. If a soft tissue mass or infection within the carpal tunnel is suspected, the patient will most likely be evaluated by:&#10;A) Functional radiographs&#10;B) Computed tomography&#10;C) Magnetic resonance imaging&#10;D) Bone scan

Accepted Answer

Magnetic resonance imaging (MRI) is the preferred method for evaluating soft tissue masses or infections within the carpal tunnel because it provides superior contrast resolution of soft tissues compared to other imaging modalities.

Deck 17: Radiologic Evaluation of the Hand and Wrist