PG Eval and Injury Management Flashcards Preview

Pathology > PG Eval and Injury Management > Flashcards

Flashcards in PG Eval and Injury Management Deck (45):
1

The functional pelvic girdle is..

11 joints sharing 1 purpose of load transmission

2

The true pelvic girdle is...

2 SI joints
1 pubic symphysis

3

The innominate is formed by..

Ilium, ischium, pubis

4

The iliac crest is important to palpate to find...

uneven hips
functional- sitting and pelvis is uneven and unstable

5

ASIS

when anterior rotate this moves forward and down (hip extension)

6

PSIS includes..

promontory and inferior margin

7

The sacrum

sacral base
sacral apex
sacral sulcus
sacral ILA

8

A keystone is..

used to stabilized and bear the weight evenly

9

Ilial movement on sacrum is..

open chain

10

Sacral movement on ilium is..

closed chain

11

Anterior rotation of Ilium

ASIS moves anterior and inferior
short SI lig
long SI lig
(limit this rotation)
PSIS moves superiorly
occurs during hip extension

12

Posterior rotation of the Ilium

ASIS moves posterior and superior
Sacrtouberous
Iliolumbar
(become taught w/ this)
PSIS moves inferior
Hip flexion >90 deg

13

Ilium inflare

ASIS moves anterior and medial
PSIS moves anterior and lateral

14

Ilium outflare

ASIS moves lateral and posterior
PSIS moves posterior and medial

15

Ilial upslip

Superior shear
Normally occurs during heel strike

16

Ilial downslip

Inferior shear
The return from upslip during swing phase gait

17

Ilium upslip: The injury

moves either:
upslip with anterior rotation
or upslip with posterior rotation

18

Sacral flexion (nutation)

Base moves anterior and inferior
Occurs during spinal extenson
exhalation
completion of spinal flexion
Limited by sacrotuberous

19

Sacral extension (counter nutation)

base moves posteriorly
early spinal flexion
inhalation
not sure what the limiter is for this

20

Sacral rotation

right and left rotation around a right oblique axis
right and left rotation around a left oblique axis
lumbar SBR= sacrum rotates left

21

Pubic motion

frontal plane: 1.3-2.1 mm
sagittal plane: .4-1.1 mm

pregnancy: 1-70 mm normal

22

anterior sacroiliac ligament

Stressed during ilial outflare; hyper hip external rotation

23

Iliolumbar ligament

checks posterior ilial rotation and contralateral lumbar sidebend and rotation
prevents lateral shift (we think)

24

Shorter posterior SI ligament

limits all ilial motion on sacrm, mainly anterior ilial rotation

25

Longer Posterior SI ligament

checks anterior ilial rotation

26

Sacrospinous ligament

checks:
sacral flexion
ipsilateral sacral rotation
ilial posterior rotation
becomes taut when biceps femoris is stretched

27

Sacrospinous ligament

does what sacrotuberous does
too deep to palpate

28

Stability of the PG depends on..

proper function of the static and dynamic stabilizers

29

Self-locked or closed pack position of SIJ

full posterior innominate rotation. ideal position for loading talks
sacral nutation during active extension of the spine and sacrum nutates

30

the PG is not self- locked in...

spine neutral: laying supine, stranding, sitting upright, and during gait cycles

31

Form closure

the ability to transfer loads through the PG , while keeping the joint surfaces stable.
This depends on static stabilizers being healthy

32

Force closure

optimal muscle function provides the PG with dynamic stability

local and global muscle system

33

local muscle system

pelvic floor muscles
diaphragm
trans abdom
lumbo sacral multifidi

34

global muscle system

opposite lat and glute max
abdominal obliques and adductors
Glute med in weight bearing

35

The lateral system/ sling

stabilizes body in frontal plane in single limb support
keeps pelvis level, prevents ilial upslip

36

The deep posterior sling

relationships of the biceps femoris with the sacrotuberous ligament; SI stablity relates to biceps femoris length

37

Motor control and PG function

as the forces are coming at the spine we should be able to engage our TA and multifidi to secure the spine segmentally
as the forces keep coming we need to fire the bigger muscles
patients with lbp AND pgp LOSE THIS TIMING!

38

Leg length discrepency

compensate by side bending to the long leg side
the lumbar spine can be in too much rotation
muscles on concave side are short/ convex side= long

39

Hyperabduction force to the hip

causes seperation of the PS

40

Hyperflexion force of hip

results in excessive posterior ilial rotation stressing sacrotuberous and iliolumbar ligs

41

Hyperextension force of hip

results in excessive anterior rotation of ilium, stressing short and long PSI ligaments

42

Hyper external rotation forces of the hip

causes possible damage to anterior SI ligament and possible PS seperation

43

Beighton score

want to have a low score
systemic hypermonbility- collagen is looser than a normal persons)

44

Ehler's Danlos Condition

extreme collagen laxity (scores an 8 or 9)

45

Common PG signs and symptoms

tender palpation of PSIS and pubis and ligs
unilateral complaint
pain with stair climbing, gait, standing, sitting
referred pain to buttock and post thigh