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OCS prep > SIJ/Pelvis > Flashcards

SIJ/Pelvis Flashcards

1
Q

Would increased or decreased activation of gluteus maximus and biceps femoris lead to SIJ stiffness?

A

increased

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2
Q

Impaired gluteus maximus and biceps femoris motor control may lead to what at SIJ

A

functional laxity

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3
Q

What changes happen in cartilage at SIJ as you age?

A

shift from hyaline cartilage to fibrocartilage.

This leads to decreased motion

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4
Q

The transverse acetabular ligament is a continuation of what structure?

A

labrum

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5
Q

What ligament is engaged with optimal sitting position, and what effect does this have on SIJ

A

sacrotuberous ligament in engaged due to sacral nutation. Lead to SIJ stability

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6
Q

How innervated is the SIJ

A

highly innervated

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7
Q

How can SIJ radiate pain?

A

L5 and all sacral dermatomes/myotomes

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8
Q

which nerve root passes through piriformis?

A

S2

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9
Q

How high does force on swing leg get during SLS

A

3-4x body weight

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10
Q

Which muscle group has long lever arm to overcome forward bend forces?

A

erector spinae

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11
Q

What is role of multifidus in producing extensor torque?

A

tension erector spinae aponeurosis and correct motions/support specific joints

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12
Q

What limits force production by multifius?

A

short length

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13
Q

What muscle recruitment pattern is more common in response to LBP?

A

hamstring dominant pattern

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14
Q

With LBP, what happens to gluteal musculature?

A

inhibited.

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15
Q

What muscle groups triangulate to stabilize ribs/spine with compression

A

rectus abdominus
QL
erector spinae

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16
Q

When hip is flexing, can psoas provide stabilization at spine?

A

yes, can provide compressive forces

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17
Q

Which hip motions is coupled with pelvic anterior rotation?

A

hip extension

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18
Q

Which pelvic motion is coupled with hip flexion?

A

posterior rotation

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19
Q

Which ligament controls anterior rotation of pelvis?

A

long posterior sacroiliac ligament

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20
Q

Which ligament controls posterior rotation of pelvis?

A

sacrotuberous

21
Q

What sacral motion occurs with trunk extension?

A

flexion

22
Q

Which trunk motion occurs with sacral extension

A

flexion

23
Q

What is a positive active straight leg raise test?

A

ASLR strength improving with pelvic compression.

Indicative of joint hypermobility on weak side

24
Q

What may lead to false negative on ASLR?

A

not using weight.

Sometimes weight of leg is not enough to discern weakness

25
Q

Cluster of findings to seperate hypermobile pubis from hypomobile SIJ

A 
positive ASLR
tenderness of superior pubic ligament
tenderness of psoas
tenderness of iliacus
tenderness of adductors
excessive motion of imaging
26
Q

SIJ CPR

A 
Thigh thrust
compression
distraction
sacral thrust
Gaenslan

3/5= SN.91, Sp.87

Patients must not centralize to use CPR

27
Q

SIJ CPR 2

A 
Distraction
Compression
FABER
thigh thrust
Gaenslan

if less than 3 are positive, between 72 and 99% chance of no SIJ pain

28
Q

Distraction and compression are (sensitive/specific) for pelvic fracture/instability?

A

sensitive

29
Q

Fortin test

A

When patient points at pain, should be within 1cm of PSIS

30
Q

Patrick test is also known as?

A

FABER

31
Q

Is hip scour more sensitive or specific?

A

sensitive

32
Q

Hip OA by restricted motion

A

3 or more planes of restricted motion

33
Q

Hip OA CPR

A 
pain
IR less that 15
pain with IR PROM
morning stiffness of up to 1 hour
older than 50
34
Q

Stenosis CPR (5 items)

A 
bilateral symptoms
leg pain worse than back pain
pain during standing/walking
pain relief with sitting
older than 48.

Sp: 3 test: .88

35
Q

Which level disc herniation is femoral nerve tension test hypothesized to be sensitive for

A

L4/5

36
Q

HABER test

A

can reproduce SIJ pain, may discriminate from LBP

37
Q

what percentage of SIJ pain has symptoms below the knee

A

40%

38
Q

What is most common location of pain with SIJ involvement?

A

slightly lateral and inferior to PSIS

39
Q

In posterior pelvic pain since pregnancy, is hip weakness thought to be due to muscle weakness, or difficulty using muscles

A

difficulty using muscles.

40
Q

in forward bending, what percentage of movement should be lumbar and what should be pelvid

A

50/50

41
Q

Key characteristics of cauda equina syndrome (5)

A 
saddle anesthesia
bladder dysfunction
sexual dysfunction
bowel dysfunction
neurological deficits of LE
42
Q

Clinical test for pelvic fractures

A

inability to perform hip flexion with knee extension

43
Q

Risk factors for lumbar fracture

A

trauma, point tenderness and uce of corticosteroids

44
Q

Male or female, who is more likely to get a stress fracture?

A

female. 3.5x

45
Q

What s/s may rule in potential zygaphophyseal joint pain

A

absence of pain with coughing/sneezing and when rising from chair

46
Q

If pain is not present with coughing or stand from sitting, what may likely be source of pain

A

zygapophyseal joint pain.

47
Q

Which test have best sensitivity and specificity for SIJ CPR

A

thigh thrust and distraction

48
Q

What impact does an SIJ belt have?

A

relieves tension on ligaments

49
Q

Does wearing an SIJ belt have an impact on muscle activity

A

no

OCS prep (12 decks)

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