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MSS - OPP Exam 3 > Hip and Knee Mechanics > Flashcards

Hip and Knee Mechanics Flashcards

1
Q

external rotation of hip

A

head of femur glides anteirorly in acetabulum

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2
Q

internal rotation of hip

A

head of femur glides posteriorly in acetabulum

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3
Q

ligaments of hip?

A

iliofemoral ligament
ischiofemoral ligament
ligamentum teres capitis femoris

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4
Q

flexors of hip?

A 
psoas major
iliacus
pectineus
rectus femoris
sartorius
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5
Q

psoas major

A

T12-L5 origin

inserts at lesser trochanter

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6
Q

innervation of psoas major

A

L123

low back pain and hip problem
pain can be reffered to anterior hip and thigh

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7
Q

extensors of hip?

A

gluteus maximus and hamstrings

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8
Q

gluteus maximus

A

origin - ilium, iliac crest, erector spinae, sacrum, coccyx, sacrotuberous ligament and gluteus medius fascia

inserts at IT tract of fascia latae

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9
Q

innervation of gluteus maximus?

A

L5, S1, S2

-inferior gluteal nerve

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10
Q

hip extensor tension?

A

limit hip flexion

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11
Q

abductors of hip?

A

gluteus medius and mini us

tensor fascia lata and sartorius

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12
Q

lateral hip and knee pain?

A

frequently seen with dysfunction of tensor facia lata

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13
Q

gluteus medius

A

upper outer ilium

inserts into greater trochanter

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14
Q

innervation of gluteus medius?

A

L5 and S1

-superior gluteal nerve

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15
Q

adductors of hip?

A

adductor longus, brevis magnus
obturator externus
gracilis

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16
Q

adductor longus?

A

origin - anterior aspect of pubis

inserts middle third of femur

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17
Q

innervation of adductor longus

A

L2, L3, L4

-obturator nerve

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18
Q

persistant groin pulls?

A

inferior pubic symphysis pubis shear

-dysfunction of symphysis pubis

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19
Q

internal rotators of hip?

A

tensor fascia lata

gluteus minimus and medius

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20
Q

gluteus minimus

A

origin - outer surface of ilium and greater sciatic notch

inserts greater trochanter

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21
Q

innervation of gluteus minimus

A

L5 and S1

-superior gluteal nerve

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22
Q

external rotators of hip?

A 
obturators
gemelli
quadratus femoris
gluteus maximus
sartorius
piriformis
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23
Q

piriformis

A

origin - anterior surface of sacrum, gluteal surface of ilium, capsule of sarcoiliac joint and sometimes sacroiliac and sacrotuberous ligaments

inserts - greater trochanter

24
Q

innervation of piriformis

A

S1 and S2

25
Q

tightness of piriformis?

A

decrease hip internal rotation and may irritate sciatic nerve

26
Q

decreased hip extension?

A

psoas major

27
Q

decreased internal hip rotation?

A

piriformis

28
Q

acetabular labrum

A

maintains hip stability

provides proprioceptive info regarding hip motion

29
Q

sharp deep pain in anterior thigh and groin

A

acetabuluar labrum tear

worsens when rising from seated
hear a click maybe
nonresponsive to conservative treatment

30
Q

intraarticular hip problems?

A

lose internal rotation first**

-most typical

31
Q

internal rotation of knee?

A

posterolateral glide

32
Q

external rotation of knee?

A

anteromedial glide

33
Q

screw home mechanism?

A

in knee

-when extended, passively locks due to medial rotation of femoral condyles on tibial plateau

34
Q

partial tears of knee?

A

grade 1 and 2
treated with OMM/rehab

complete tears (grade 3) require surgical repair or reconstruction

35
Q

menisci

A

outer 1/3 vascular and more likely to heal

inner 1/3 avascular and less likely to heal

36
Q

joint locking in knee?

A

significant menisci tear

or subjective instability

37
Q

O’Donoghues triad

A

ACL
medial collateral
medial meniscus

38
Q

flexors of knee?

A 
biceps femoris
semimembranosus
semitendinosus
popliteus
gastrocnemius
39
Q

dysfunction of knee flexors?

A

posterior knee pain

40
Q

biceps femoris muscle

A

origin - ischial tuberosity, sacrotuberous ligament, femur

insertion - fibular head, lateral collateral ligament, lateral condyle of tibia

41
Q

innervation of biceps femoris

A

L5, S1, S2

-sciatic nerve

42
Q

extensors of knee

A

rectus femoris
vastus lateralis
vastus medialis
vastus intermedius

43
Q

dysfunction of knee extensors?

A

anterior knee pain

44
Q

rectus femoris**

A

origin - anterior iliac spine, groove above acetabulum, capsule of hip
inserts - base of patella

45
Q

innervation of rectus femoris?**

A

L2, L3, L4

-femoral nerve

46
Q

excessive tension in knee flexors?

A

limits knee extension

and vice versa

47
Q

proximal tibiofibular joint?

A

allows anteriolateral and posteromedial gliding of fibular head

fibular head moves in combination with lateral malleolus

48
Q

inversion ankle sprain?

A

may result in restriction of lateral malleolus and fibular head

49
Q

attaches to fibular head?

A

lateral collateral ligament
lateral hamstring muscle (biceps femoris)

-if restrictions persist after treatment - look at lateral meniscus

50
Q

near fibular head?

A

common fibular nerve

  • may be affected by posterior fibualr head
  • may lead to foot drop
51
Q

femoral triangle?

A

bound by sartorius, adductor longus, and inguinal ligament

52
Q

sympathetics of lower extremity?

A

preganglionic T10-L3

53
Q

somatic dysfunction at thoracolumbar junction?

A

increases sympathetic tone to lower extremity

-decreases lymph drainage

54
Q

hip injuries?

A

lateral trochanter tenderpoints

55
Q

knee injuries?

A

medial and lateral meniscal tenderpoints

MSS - OPP Exam 3 (7 decks)

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