Hip IRA/ TIRA Flashcards

1
Q

Where is the fovea?

A

femoral head
it is an attachment from ligamentum teres

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2
Q

What is the purpose of the femoral head?

A

Allows limb movement without impact from pelvis

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3
Q

What is the purpose of the femoral shaft?

A

Sustains compressive loads,
ridges at muscular attachment sites

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4
Q

what plane is the angle of inclination?

A

frontal plane ( neck to femoral shaft)

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5
Q

normal angle of inclination

A

135 degrees
adult: 125 to 140

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6
Q

coxa vara angle

A

less than 120

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6
Q

coxa valga angle

A

more than 140

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7
Q

what is the plane of anteversion

A

Transverse plane

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8
Q

Normal Anteversion angle

A

10 -15 degrees

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9
Q

Excessive anteversion angle? leads what?

A

40 degrees
1. increased risk for anterior dislocation

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10
Q

acetabular angle of anteversion M and W

A

M: 14
W: 19

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11
Q

Contents in Gap Between Inguinal Ligament & Pelvis

A

iliacus
pectineus
psoas major
femoral nerve and artery
lymphatics

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12
Q

Labrum function

A
  1. joint stability
    - Static restraint
    - provides propioceptive information
    - Free nerve endings; sensory pain information
  2. deepens acetabulum
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13
Q

What part of the labrum is most likely to heal? less likely to heal

A

outer 1/3 - vascularized, healing
inner 2/3 avascular, no healing

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14
Q

which ligament provides Anterior stability to hip especially in extended position

A

iliofemoral ligament

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15
Q
  1. Continuous with labrum
  2. Forms foramen for entry of vasculature/ nerves
A

Transverse Acetabular Ligament

16
Q
  1. Attached at fovea on femoral head & acetabular notch
  2. Tensile loading with partial flexion & adduction
  3. Slackened in abduction
A

Ligamentum Teres

17
Q

Iliofemoral ligament tight
PF relaxed
Ischiofemoral stretched
what action?

A

ADDuction

18
Q

Ischiofemoral ligament tenses
what action?

A

ABDuction

19
Q

anterior ligaments are taut,
Ischiofemoral slackens
what action?

A

External rotation

20
Q

Resting Pack Position

A

~ 30° flexion, 30° abduction, and slight ER

21
Q

Close Packed Position

A

Full extension with abduction & IR