L9: The lower-limb the hip Flashcards
actions of the hip joint (5)
flexion extension abduction adduction circumduction
which trochanter is more superior and lateral
greater trochanter
anterior line between the trochanters
intertrochanteric line
posterior line between the trochanters
intertrochanteric crest
1/4 of gluteus maximus inserts onto
gluteal tuberosity on posterior femur
what is distal from the gluteal tuberosity
linea aspera
what inserts onto the linear aspera
adductor muscles from the medial compartment of thigh
where does the head of the femur sit
acetabulum
which bones meet in the acetabulum
pubis, ischium and ilium
what is at the inferior surface of the acetabulum
transverse acetabular ligament
what does the transverse acetabular ligament allow
blood vessels to access the head of the femur
3 ligaments from the bones of the pelvis
iliofemoral
pubofemoral
ischiofemoral
weakest ligament from the pelvis
ischiofemoral
strongest ligament of pelvis
iliofemoral
what do most hip fractures displace
shenton’s line
what two muscles form iliopsoas
psoas major
iliacus
what muscle has the lumbar plexus embedded into it
psoas major
when are psoas major and iliacus considered the same muscle
once passed the inguinal ligament
femoral artery splits into
profunda femoris + deep femoral artery
deep femoral artery branches into
circumflex arteries
what artery goes towards the greater trochanter
lateral circumflex
what artery goes towards the lesser trochanter
medial circumflex
what arteries come from the circumflex and anastomosis
retinacular arteries
main blood supply to NOF =
retinacular arteries
artery to NOF that is small in adults but big in children
artery to the head of the femur (also called foveolar)
NOF fracture causes
- shortened limb
- external rotation of limb
- retinacular arteries torn (avascular necrosis)
inferior gluteal nerve innervates
gluteus maximus
3/4 of gluteus maximus attaches to
the iliotibial tract
trendelenburg gait
lesion in superior gluteal nerve or its spine roots –> hip drop on contralateral side
which part of the sciatic nerve is more likely to deviate
common fibular nerve (comes through or above piriformis)
which hip movements share L2 and L3
flexion
adduction
which hip movements share L4 L5
extension
abduction
muscles of hip flexion=
iliopsoas
sartorius
rectus femoris
pectineus
muscles of flexion come from which nerve
lumbar plexus and femoral nerve
muscles of hip extension=
gluteus maximus
hamstrings
short gluteal muscles
nerve of extension
inferior gluteal nerve
tibial nerve
lumbosacral plexus
muscles of adduction
adductors
pectineus
gracilis
nerve of adduction=
obturator nerve
muscles of abduction
gluteus medius
gluteus minimus
tensor fascia latae
nerve of abduction
superior gluteal nerve