Flashcards in Joints of the Hip Complex Deck (25):
Components of the hip bone
type of articulation of the hip
ball and socket
What is the name of the articular face of the hip? what bones make it?
Ileum, Ischium and Pubis
most important parts of the proximal portion of the femur?
Greater and lesses trochanter
in the proximal end of the femur, relevant epiphysis
head == pressure epiphysis
greater trochanter == traction epiphysis
what part of the head of the femur is not inside the socket of the acetabulum and what structure protects it?
the anterior surface and it is covered by psoas bursa [not communicating with the joint]
what part of the hip one sits on?
what is the labrum and what are their functions?
rim of cartilage that surrounds the acetabulum, filled with synovial fluid, in charge of increasing the surface of articulation
the main function of the ligament of the head of femur is mechanical support T/F
F, arteries to the femur that die off after puberty
what are the trabecular systems and how many are there?
2 trabecular systems and they are the lines of weight baring support of the muscle (superior: [arcuate and vertical] and inferior: [medial-lateral])
line of gravity passes behind the pelvic articulation T/F
how many ligaments reenforce the pelvic joint?
IlioFemoral [anterior, direct attachment to the femur, inverted Y]
where does the capsule attach to the femur?
at the base of the neck
what is the main ligament responsible for the strength of the joint?
iliofemoral, locks and medially rotates
what arteries run in the capsule of the joint what what do they supply? where to they come off? what are they branches off?
supply the neck and head of the femur
from the lateral/medial circumflex artery
from Femoralis Profunda
when does medial and lateral rotation occur?
what is the main function of gluteus medius and minimus?
abduction and maintaining of the position on the coronal plane on swing phase. They contract and pull downwards
what nerves five supply to the hip joint?
articular branches of femoral and obturator nerve
Myotomes of hip flexion
Myotomes of hip extension
what structure lies behind the pelvic articulation and might be damaged in a-p dislocation?
coxa valga is?
when the head of the femur articulates in an gale to more than 125 degrees casing the keens to be more inwards than normal
coxa vara is?
when the head of the femur articulates in an gale to less than 120 degrees casing the keens to be more outwards than normal increasing the strain on the neck
if the femur is fractures what happens with the limb?
external rotation and shortening of the limb due to muscle spams