hip anatomy Flashcards
also known as os coxa. composed of ilium, ischium, pubis
hip bone
largest of the three bones. forms 2/5 of the acetabulum
ilium
forms posterior 2/5 of the acetabulum
ischium
smallest of the three bones. anterior 1/5 of the acetabulum
pubis
ilium
psis
piis
iliac crest
asis
aiis
acetabulum
ischium
ischial spine
ischial tuberosity
ischial ramus
acetabulum
pubis
superior pubic ramus
pubic tubercle
inferior pubic ramus
acetabulum
formed by fusion of ilium, ischium, and pubis
acetebulum
orientation of acetabulum
laterally, inferiorly, and anteriorly
acetabulum is reinforced superiorly and posteriorly by
cortical bone
periphery is thickened by fibrocartilage
acetabulum rim or labrum
strongest and longest bone in the body
femur
proximal end of femur consists of
head, neck, greater and lesser tubercle
orientation of head of femur
angled anteriorly, superiorly, medially
2/3 of femoral head is covered with articular cartilage except
fovea capitis
designed to withstand high loads
primary and secondary compressive pattern, primary and secondary tensile pattern
trabecular bone
point of weakness in the trabecular pattern; common site of osteoporotic fractures
ward’s triangle
largest and most important hip extensor and external rotator
Gluteus maximus
envelops the muscles of the thigh
Tensor Fascia Latae (TFL)
Injection upper outer quadrant, might paralyze patient if in any other spot, as it might hit the sciatic nerve
lurching gait
Gluteus maximus
Counteracts the backward pull of the gluteus maximus on the ITB
Extends knee
Tensor Fascia Latae (TFL)
critical for balancing the pelvis during single leg stance
Gluteus medius
AKA deltoid of the hip
Gluteus medius
During single leg stance
3x bodyweight transmitted to the hip (2/3 generated by hip abductor mechanism)
2 functional parts of Gluteus Medius
Anterior - flex, abduct, IR
Posterior - extend and ER
stand on one leg, and other hip dips down
Trendelenburg’s Test