Question 1

Which of following views provides the best visualization of the patella and patellofemoral joint?&#10;A) Anteroposterior&#10;B) Lateral&#10;C) PA axial &#34;tunnel&#34;&#10;D) Tangential view of the patellofemoral joint

Accepted Answer

The tangential view of the patellofemoral joint, also known as the sunrise or Merchant view, provides the best visualization of the patella and the patellofemoral joint, allowing for detailed assessment of these structures.

Question 2

Bony avulsion of the tibial attachment of the anterior cruciate ligament (ACL) is likely to be best visualized on which radiograph view?&#10;A) Anteroposterior&#10;B) Lateral&#10;C) PA axial &#34;tunnel&#34;&#10;D) Tangential view of the patellofemoral joint

Accepted Answer

The lateral view is most effective for visualizing a bony avulsion of the tibial attachment of the anterior cruciate ligament (ACL) because it allows for a clear view of the anterior and posterior aspects of the tibia, where the ACL attaches.

Question 3

Evaluation for patella alta is best performed on which radiograph view?&#10;A) Anteroposterior&#10;B) Lateral&#10;C) PA axial &#34;tunnel&#34;&#10;D) Tangential view of the patellofemoral joint

Accepted Answer

The PA axial "tunnel" view is the best radiograph view for evaluating patella alta. This view is taken with the knee in 90 degrees of flexion and the patella facing directly towards the X-ray beam. This view allows for visualization of the patella's position relative to the trochlea of the femur, which is important for diagnosing patella alta.

Question 4

Which of the following is true regarding the medial and lateral tibiofemoral joint spaces in a healthy individual with normal lower extremity alignment?&#10;A) Lateral joint space is of greater height&#10;B) Medial joint space is of greater height&#10;C) Medial and lateral joint spaces are equal in height

Accepted Answer

The medial joint space is of greater height in a healthy individual with normal lower extremity alignment. This is because the medial meniscus is thicker than the lateral meniscus, and the medial compartment of the knee bears more weight than the lateral compartment.

Question 5

Lateral subluxation of the patella will be best visualized with which of the following radiograph views?&#10;A) Anteroposterior&#10;B) Lateral&#10;C) PA axial &#34;tunnel&#34;&#10;D) Tangential view of the patellofemoral joint

Accepted Answer

Tangential view of the patellofemoral joint, also known as the sunrise or Merchant view, is specifically designed to visualize the patellofemoral joint and is best for detecting lateral subluxation of the patella.

Question 6

Which of the following findings warrant getting radiographs after a knee injury?&#10;A) Inability to flex the knee to 90 degree&#10;B) Inability to flex the knee more than 110 degrees&#10;C) Inability to fully extend the knee&#10;D) Inability to fully flex the knee

Accepted Answer

The answer of Which of the following findings warrant getting...

Question 7

Decreased radiographic joint space, sclerosis of subchondral bone, and osteophytes are the primary features of which process?&#10;A) Rheumatoid arthritis&#10;B) Degenerative joint disease&#10;C) Osgood-Schlatter disease&#10;D) Osteochondritis dissecans

Accepted Answer

These features are characteristic of degenerative joint disease, also known as osteoarthritis, which is a common form of arthritis involving the wear and tear of cartilage.

Question 8

&#10;&#10;-Refer to the figure. Name the view.&#10;A) Anteroposterior&#10;B) Lateral&#10;C) PA axial &#34;tunnel&#34;&#10;D) Tangential view of the patellofemoral joint

Accepted Answer

The view is a PA axial "tunnel" view of the patellofemoral joint.

Question 9

&#10;&#10;-Refer to the figure. What is the defect in the circle? Hint: This is the most common location for this lesion.&#10;A) Osteochondritis dissecans&#10;B) Fracture&#10;C) Ewing's sarcoma&#10;D) Osgood-Schlatter disease

Accepted Answer

Osteochondritis dissecans is a joint condition whereby a variable amount of bone and its adjacent cartilage loses its blood supply, leading to fragmentation of the bone and cartilage. The location within the circle, typically on the knee joint, is a common site for this condition, distinguishing it from the other options listed.

Question 10

&#10;&#10;-Refer to the figure. The developmental deformity shown here is described as:&#10;A) Bilateral genu varum&#10;B) Bilateral genu valgus&#10;C) Ipsilateral genu valgus&#10;D) Contralateral genu varum

Accepted Answer

The deformity shown is characterized by the knees being abnormally far apart when the ankles are together, which is known as bilateral genu valgus, commonly referred to as "knock-knees."

Deck 13: Radiologic Evaluation of the Knee