Week 8 Flashcards
What is femoral version?
Rotation of the neck of the femur relative to the femoral condyles in the frontal plane.
What version is the hip in, if the femoral head lies anterior to the frontal plane, and in what angle?
The hip is anteverted, with the average being 14-20 degs
What version is the hip in, if the femoral head lies posterior to the frontal plane, and in what angle?
The hip is retroverted
What is version?
The momentary position of the femur in the acetabulum. Or the relative position of the acetabulum on the pelvis
What is femoral torsion?
Rotation of the long axis of the femur (“twist”). (the osseous twist from the proximal to the distal end of the long bone)
What does a person with femoral anteversion have to do in order to gain maximum hip congruency(when the head of the femur and the pelvis are aligned)?
The have to internally rotate their femur, and subsequently internally rotate their entire LE, which will cause in toeing during gait and stance
What does a person with femoral retroversion have to do in order to gain maximum hip congruency(when the head of the femur and the pelvis are aligned)?
They need to externally rotate, and will have a toe out stance and gait
What is the torsional profile used for?
Used to help differentiate/determine the anatomical basis for torsional deformity. It can also be used to document the severity of the deformity, or the abnormality. Only provides a gross picture, but doesn’t really tell you where the problem is coming from
The foot progression angle can be used to determine if a child has an in toe gait or out toe gait. How is an in toe gait expressed?
It is expressed as a negative value
The foot progression angle can be used to determine if a child has an in toe gait or out toe gait. How is an out toe gait expressed?
Positive value
What is the mean value and the normal range of foot progression angles?
Mean: +10 degs
Normal range: - 3 degs to +20 degs
In the hip rotation ROM test, a person is prone in a 90-90(hip and knee flexion), what indicates a femoral anteversion?
An increase in IR, compared to ER, which is usually indicated by at least a 45 deg difference in IR compared to ER
In the hip rotation ROM test, a person is prone in a 90-90(hip and knee flexion), what indicates a femoral retroversion?
If ER is at least 50 degs more than IR
What are the characteristics of the hip rotation ROM test?
Not accurate in children less than 3, due to the natural limitation of hip IR, extrinsic to the joint.
What is craigs test used for and how is it done?
Craig’s test is another way to look at anteversion.
Palpate the greater trochanter
At the point of maximum trochanter prominence, the femoral neck is said to be horizontal. If the tibia is externally rotated, this corresponds with an anteversion value, and vice versa if the tibia is internally rotated.
