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SPINE/MARCIE > Overall Instability and SI joint > Flashcards

Overall Instability and SI joint Flashcards

1
Q

Excessive movements of the spine that are within the active subsystem (muscular) control. For example, a gymnast has increased mobility but also has the strength and coordination to control the mobility. There are no aberrant movements present

A

hypermobility

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2
Q

sxs or components that provide stability to the spine

A
  1. Passive subsystem – the spinal column and its ligamentous support
  2. Active subsystem – the muscles and the fascial systems
  3. Control subsystem – neural system of balance, coordination, timing, firing
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3
Q

diff btwn hypermobile and instable

A

hypermobile they can still control

instable, there is uncontrolable laxity or abberant mvmt

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4
Q

The zone where there is minimal resistance to motion of a given vertebra

A

neutral zone

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5
Q

function of ligg

A

provide the most support to the spine at the end ranges of motion where they check excessive mobility

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6
Q

if there are deficits to the subsxs then what occurs

A

increased mobility

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7
Q

the spondys that cause lumbar instability

A

spondylolysis and spondylolythesis

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8
Q

a displaced spondylolysis

A

spondylolysthesis

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9
Q

post oblique connection

A

glut max and lat contraction compresses SI

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10
Q

b) The biceps femoris can control the degree of sacral nutation through the ___

A

STL

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11
Q

the inner unit muscles consist of

A

Pelvic floor
Transversus abdominis
Multifidus
Diaphragm

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12
Q

the deep longitudinal group consists of

A

erector spinae
thoracodorsal fascia
sacrotuberous ligament
biceps femoris

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13
Q

the ant oblique muscles consist of

A

EO
IO
abd fascia
(these are quiet in sitting with legs crossed)

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14
Q

what are inhibitied when SIJ is unstable

A

glut min and med (the laterals)

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15
Q

purpose of inner unit muscles

A

stiffen spine to prepare body for mvmt

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16
Q

largest and most medial lumbar muscle

A

multifidus

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17
Q

L1 multifidi attachments

A

L4, L5, S1 & I.C.

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18
Q

L2 multifidi attachments

A

L5, S1, PSIS

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19
Q

L3 multifidi attachments

A

S1 SAP, lat. S1 & S2

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20
Q

L4 multifidi attachments

A

Lat. sacral crest to dorsal sacral foramen

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21
Q

L5 multifidi attachments

A

Inter. sacral crest inf. to S3

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22
Q

what is the principal action of the multifidus

A

principal action of the multifidus is segmental control

also prevents forward bending force as abs rotate trunk

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23
Q

other jobs of multifidus

A

cessation of Er. Sp. firing during LS FB
increases the stiffness of spinal segments
fine tuner of spine (always on)

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24
Q

Agg factors: Prolonged postures (sitting, standing, bending, semi-flexed postures).
Forward bending, sudden unexpected movements

A

instability

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25
Q

SI is caudal to the

A

psis

26
Q

where is px often times with SIJ

A

at psis

27
Q

is px uni or B with SIJ

A

uni

28
Q

explain SIJ px

A

dull ache all the way to sharp px with catching

c/o heaviness or out of place feeling

29
Q

AGG factors for SI

A

SL stance
walking
crossing legs
plant leg

30
Q

ease factors of SIJ

A

tight pants or wearing a back support

31
Q

what are some disorders related to hypomobility

A

rotations
up/down slips
in/out flare
nutation or coutnernutation

32
Q

does SIJ issues have neuro sx

A

no

33
Q

what lumbar segments are included with pelvic girdle

A

L4-L5

34
Q

what ligg blends with the QL as it attaches at IC and prevents/limits all motions

A

iliolumbar

35
Q

which lig is weakest

A

Ant/ventral

36
Q

ratio of movement F to M (preggers)

A

5:1

37
Q

ratio of F to M non preggers

A

1:1

38
Q

the SIJ is a mobilie ___

A

stabalizer

39
Q

sacral nutation is

A

sacral flexion

40
Q

sacral counternutation is

A

sacral ext

41
Q

with nutation, the base of the pelvis does what

A

spreads out to make room

42
Q

ant tilt muscles

A

tight hip flexors tight RF

43
Q

post tilt muscles

A

tight hams, gluts

44
Q

with nutation, the innominate goes

A

post tilt

45
Q

with counternutation the innominate goes

A

ant tilt

46
Q

if sacrum is right rotated, the left sulcus is ___ and the right sulcus is ___

A

left is deep right is shallow

47
Q

in an inflare, the ASIS is ___ and the psis is ____

A

asis medial psis lateral

48
Q

with inflare, what muscles do this

A

hip IR

49
Q

outflare muscles

A

hip ER

50
Q

miss step off a curb could lead to

A

upslip

51
Q

downslips are caused by

A

trauma

52
Q

the girdle squeeze was ____ closure

A

form

53
Q

the oblique crunch was ___closure

A

force

54
Q

during lumbar flexion the sacrum flexes, pulling the pelvis__

A

post

55
Q

sacral ext (or counternutation) happens in what motions/positions

A

supoine
at end range lumbar flexion
inhalaion

56
Q

during left axial rotation, the left innominate does what

A

left innominate post while right goes ant

57
Q

tilt is named by

A

ileum, not sacrum

58
Q

what are some specific predisposing conditions for si/pelvis issues

A

preggers
gait abnormalities
leg length issues
vigourous exercise

59
Q

what is the gold standard to dx si

A

fluroscopic block

60
Q

if ___ or more px provocative tests are pos then there is a ___ chance it is SIJ

A

3 or more

59%

SPINE/MARCIE (3 decks)

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