hip anatomy review Flashcards
what two planes do we consider the femoral neck in
angle of inclination
torsional angle
in the angle of inclination frontal or transverse
frontal
is the torsional angle frontal or transverse
transverse
why do we care about the nagular characteristic of the hip
may have a potential effect on the joint stability of the hip
does the angle chnage throughout devlopment
yes
what are the two terms of the angle of inclincation
coxa valga and coxa vara
what is the function of the angle of inclination
orients the femoral shaft more laterally and provides a better lever arm for the hip abd
angulation of the femoral neck in the frontal plane
what is the normal angle of inclincation
125-deg
what is coxa valga
when the angle of inclination is greater then 125
what is coxa vara
when the nagle of inclination is less then 125
at what angle of inclination is the hip less stable
coxa valga
brings the trochanter inwards so it is less efficient and has less of a pull
at what angle of inclincation is the hip more stable
coxa vara
what is coxa vara
the angle of inclincation is less then 120
is the angle of inclination greater when we are younger or older
younger
angle decreases as we age
what is the torsional angle
angulation of the femoral neck in the the tranverse plane
what is the normal torsional angle
8 -10
what is anteversion
increased torsional angle
what is the retroversion
decreased torsional angle
toe in or out with anteversion
toe in
toe in or out with retroversion
toe out
what is the angle of inclination at birth
150 at birth and decreases with age
what is the torsional at birth
30 -60
what is the acetablum
site of articulation with the femoral head
what deepens the acetabulm
the fibrocartilgenous labrum
what is the orientation of the the femoral head
anterior
lateral
inferior
what is the center angle
the degree of overhang of the acetabulmn over the femoral head
center of the femoral head to the lip of the acetabulm
what happens if there is too much over hang
impingment
what is the def of dysplagia
innsufficient acetabular coverage
what ligament spans the ace notch
the transverse notch
what is the function of the labrum
increases joint stability
is the joint capsule reinforced
yes it has ligamentous reinforcement
z in the front