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SOMI Chapter 6

Feet, Ankle, Knee

QuestionAnswer
In the sesamoid tangential projection, how much angle from vertical is the foot dorsiflexed? 15 to 20 angle from vertical
What is the minimum amount of distal metatarsals that should be visualized on a sesamoid projection? 3
The CR is perpendicular to the IR directed to what landmark on the sesamoid projection? posterior aspect of the first MTP joint
In the AP weight-bearing feet projection how much and which way is the CR angled? 15 degrees posteriorly
Where is the CR directed to for the weight-bearing AP feet projection? midpoint between the feet at the level of the base of the metatarsals
How much of the distal tib-fib should be visible on the weight-bearing lateral foot projection? a minimum of 1 inch of distal tib-fib
What are stress views of the ankles used for? evaluate ankle joint for joint separation and ligament tear or rupture
In the stress view of the ankle from a true AP position which way is inversion and which way is eversion? inversion is stressing the ankle medially and eversion is stressing the ankle laterally
In a AP weight-bearing bilateral knee projection where is the CR directed? CR perpendicular to IR directed to midpoint between knee joints at a level 1/2 inch below the apex of the patella
What is another name for the PA axial weight-bearing knee projection? Rosenberg Method
How much are the knees flexed in the Rosenberg method? 45 degrees
How much CR angle and what direction is the CR for the Rosenberg method? 10 degree caudad
Where is the CR directed in the Rosenberg ? directly to midpoint between the knee joints at level 1/2 inch below apex of the patellae
The Intercondylar fossa can be imaged PA or AP, what are the names of the two PA versions? Camp Coventry method and Holmblad Method
Camp Coventry method is done prone with the knee flexed at what angle? 40 to 50 degree angle
All three Holmblad methods require the patient to lean forward how far? 20 to 30 degrees forward
For both the Camp Coventry and Holmblad how is the CR directed? perpendicular to the lower leg
What is the name of the AP projection of the intercondylar fossa? Beclere Method
How much is the knee flexed in the Beclere method? 40 to 45 degrees
How should the CR be directed for the Beclere method? perpendicular to the lower leg
Where should the CR be directed for the Beclere method? 1/2 inch distal to the apex of patella
Created by: xraydude