Flashcards in Lower Quarter 1 (Hip and Knee-Tibiofemoral) Deck (144)
what makes up the coxofemoral joint/
acetabulum of the pelvis
what type of join is the coxofemoral joint?
how many degrees of freedom does the coxofemoral joint have/
Where is the acetabulum located in terms of the innominate?
on the lateral aspect
what are the faces of the acetabulum?
what are the three bones that contribute to the surface of the acetabulum?
What is the innominate?
half the pelvis
What does the acetabulum do/
accepts the head of the humerus.
What is the fossa of the acetabulum?
the deepest portion of the acetabulum
what is the lunate surface of the acetabulum?
horseshoe-shaped articular cartilage
What is the labrum of the acetabulum?
wedge-shaped fibrocartilage that rings the acetabulum
What does the labrum do in the acetabulum?
deepens the socket
helps to maintain contact with the head of the femor.
What is part of the head of the femur?
what is part of the neck of the femor?
trochanters (greater and lesser)
What are the faces of the head of the femur?
Which face does both the femur and acetabulum have?
what is the angle of inclination of the femur?
Frontal plane angle
Angle between an axis through the femoral head/neck and a longitudinal axis through the shaft
What are the different angle changes of the femur throughout life?
at birth-150 degrees
in adult-125 degrees
elderly- 120 degrees
What are some abnormalities of the angle of inclination of the femur?
coxa vara- decrease in the angle (towards 90) femur goes inward, angle goes medially, adduction
coxa valga-increase in the angle (towards 180) opening up the angle
femur goes outward, angle goes internally, abduction
What is the angle of torsion?
it's in the transverse plane
it's the angle between an axis through the femoral head/neck and an axis through the femoral condyles
How does the angle of torsion change throughout life?
at birth-40 degrees
adult-10-15 degrees-internal rotation
what is the normal angle of torsion called?
What are some abnormalities of the angle of torsion?
Excessive anteversion-increase in the angle
results in lower extremity internal rotation
Retroversion-goes more towards zero point or a decrease in the angle
results in lower extremity external rotation
What are some non-osseous structures?
What does the joint capsule do?
covers femoral head and neck
is the femoral neck intracapsular or extracapsular?
are the trochanters intracapsular or extracapsular?
where is the joint capsule of the hip the thickest?
where does the ligamentum teres go between/