Tibia, fibula and knee MA209
Where should the CR enter the patient for the AP projection of the knee?
1/2 inch below the apex of the patella
How many degrees should the knee be flexed for a lateral projection?
20-30
Which of the following kVp ranges is appropriate for imaging the knee?
60-70
What is the correct amount of knee flexion for the PA axial projection (Holmblad method) of the intercondylar fossa?
70 degrees
Which of the following radiographic methods are used to demonstrate the intercondylar fossa?
Holmblad method and Camp Coventry method
Which of the following methods will demonstrate the patella in the sunrise view?
Settegast and Hughston methods
Which of the following radiographic methods is used to demonstrate the patella and the femoropatella joint space?
Settegast method
A tube angle of 5 degrees cephalic is used when taking:
a lateral projection of the knee
When the patient is prone, the knee is flexed to form and angle of 80 degrees between the femur and the lower leg, and the central ray is directed approximately 15-20 degrees cephalad through the inferior margin of the patella, the resulting radiograph will demonstrate:
a tangential projection of the patella
What is a flabella?
an additional sesamoid bone that can develop in the posterior portion of the knee
What is the relationship of the tibia to the fibula?
anterior and medial
Which of the following must be included on the AP projection of the lower leg?
entire tib/fib, knee joint, ankle joint
On a lateral projection of the knee, what anatomy is used to determine if the knee joint is properly positioned?
femoral condyles should be demonstrated superimposed
Which bone of the lower leg is located on the lateral side?
fibula
When taking a lateral projection of the knee, flexion of the knee joint should be limited to 10 degrees when there is a suspicion of:
fracture of the patella
What is the name given to the distal end of the fibula?
lateral malleolus
Which surface of the knee is in contact with the IR for the lateral projection of the knee
lateral surface
Which surface of the lower leg is placed in contact with the IR for the lateral projection of the lower leg?
lateral surface
The palpable portion at the distal end of the tibia is called the:
medial malleolus
Where is the intercondylar fossa located?
on the distal, posterior aspect of the femur
Where is the medial malleolus located?
on the medial aspect of the ankle joint
Where is the tibial spine located?
on the superior aspect of the proximal tibia
The anatomical name for the bone commonly known as the kneecap is:
patella
The sesamoid bone that is anterior to the distal femur is the:
patella
The patella is classified as a ___ bone.
sesamoid
Which of the following is true about the patella?
the base is located superior to the apex, it is the largest sesamoid bone, and it lies slightly above the knee joint
What anatomy articulates to from the knee joint?
the condyles of the femur and the tibial plateaus to form the knee joint
In the AP projection of the knee
the film is centered just distal to the patellar apex, there should be no pelvis rotation, and the patella and femur are superimposed
Which of the following are true regarding the correct position for an AP projection of the lower leg?
the leg should be extended and resting on the IR and ankle should be dorsiflexed so that the foot forms a 90 degree angle with the lower leg
If a knee x-ray is made while the patient is wearing denim jeans, which of the following is likely to occur on the image?
there will be an artifact
Which bone of the lower leg is on the medial side?
tibia
Which bones are located in the lower leg?
tibia and fibula
What name is given to the articular surface of the proximal, superior aspect of the tibia?
tibial plateau
What is the name of the palpable, bony protuberance on the anterior aspect of the proximal tibia?
tibial tuberosity
Which of the following are parts of the tibia?
tibial tuberosity and medial malleolus
