MA II: Hip Flashcards

1
Q

MA II: hip

what is the hip angle of inclination?

A
  • Angle between femoral shaft and femoral neck
  • Normal adults: 125 deg
  • Coxa vara: 105 deg
  • Coxa valga: 140 deg
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2
Q

normal angle of anteversion

A
  • 10-15 deg
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3
Q

3 ligaments of the hip

A
  • iliofemoral, ischiofemoral, pubofemoral
  • All 3 ligaments are taut in extension
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4
Q

the close packed position of hip

A

Extension + IR + Abduction

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5
Q

MA II: hip

primary hip external rotators

A
  • gluteus max
  • sartorius
  • piriformis
  • obturator internus
  • sup/inf gemellus
  • quadratus femoris
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6
Q

Position of maximal congruency of the hip

A

90° hip flexion + moderate ER + Abduction

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7
Q

primary hip abductors

A

glut medius, minimus , ​TFL

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8
Q

action of the gluteus medius

A
  • primary hip abductor
  • anterior fibers: IR/FLX
  • posterior fibers: ER/EXT
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9
Q

what muscles do posterior pelvic tilt?

A

hip extensors and abdominal muscles

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10
Q

primary hip extensors

A

gluteus maximus, hamstrings, posterior head of adductor magnus

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11
Q

From about 75° of hip flexion, ________ and hamstrings produce equal extension torque

A

adductor magnus

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12
Q

which muscle is a hip extensor when the hip is in 100 deg of flexion, and a flexor when the hip is in extension?

A

adductor longus

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13
Q

primary hip adductors

A

adductor brevis, longus, magnus, pectineus, gracilis

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14
Q

primary hip flexors

A

iliopsoas, rectus femoris, sartorius, TFL, pectineus and adductor longus.

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