Chapter 6 - Innominate and Sacrum Flashcards Preview

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Flashcards in Chapter 6 - Innominate and Sacrum Deck (31):
1

True pelvic ligaments

Anterior, posterior, and interosseous SI ligaments

2

Accessory pelvic ligaments - w/ origins and insertions

Sacrotuberous - ILA --> ischial tuberosity
Sacrospinous - sacrum --> ischial spines
Iliolumbar - TP of L4-L5 --> medial iliac crest

3

Pelvic ligament that divides the greater and lesser sciatic foramen

Pelvic ligament that is FIRST painful in lumbosacral decompensation

Sacrospinous

Iliolumbar

4

Pelvic diaphragm muscles

Also called ___ pelvic muscles

Levator ani
Coccygeus

"TRUE"

5

Piriformis - origin and insertion

Actions?

O = inferior anterior sacrum
I = greater trochanter

Externally rotate thigh
Extends and Abducts WHEN FLEXED

6

Piriformis hypertonicity - subject to what?

Pain to where?

Sciatic pain

To the KNEE (not below)

7

Axis for innominate rotation

Inferior transverse (S4)

8

Axis for sacral respiratory movement

Superior transverse (S2)

9

Axis for sacral craniosacral movement

This motion is called ____

Superior transverse (S2) - same as respiratory

Inherent (craniosacral)

10

Axis for sacral postural movement (flexion/extension)

At terminal flexion of the sacrum, _____

Middle transverse (S3)

The sacrotuberous ligaments become taut, pulling the sacral base posteriorly

11

While walking on the LEFT leg, the sacrum moves about a ____ axis

While walking on the RIGHT leg, the sacrum moves about a ____ axis

This motion is called ____

LEFT oblique axis

RIGHT oblique axis


Dynamic

12

Anterior innominate SD - cause?

Posterior innominate SD - cause?

Tight quadriceps

Tight hamstrings

13

Other names for superior innominate shear (2)

Causes (2)

Innominate upslip, Superior innominate subluxation

Fall on buttock, mis-step

14

Superior pubic shear - causes (2)

Abnormal test findings? (3)

Trauma
Tight rectus abdominus

Superior pubic bone
Positive standing flexion test
ASIS compression restriction

15

Inferior pubic shear - causes (2)

Abnormal test findings?

Trauma
Tight adductors

Inferior pubic bone
Positive standing flexion test
ASIS compression restriction

16

*****3 rules about sacral torsions in regards to L5

1. L5 sidebent = same side sacral oblique axis
2. L5 rotated = sacrum rotates the opposite way
3. ***Seated flexion is positive on OPPOSITE side of axis

17

Using the 3 rules of sacral torsions...

If L5 is F RR SR, the sacrum will be ____

Rotated LEFT on a RIGHT oblique axis

18

Positive lumbosacral spring test means _____

POSTERIOR sacral base

19

Anterior sacral torsion...findings for the MOVING ILA?

Posterior sacral torsion...findings for the MOVING ILA?

ANY sacral torsion...findings for the lumbar curvature?

Posterior and slightly INFERIOR

Anterior and slightly SUPERIOR

CONVEX to the OPPOSITE side of the axis

20

Sacral springing is restricted at R sulcus, L and R ILA
Sacral springing is present at the L sulcus

Diagnosis?

R on R sacral torsion

21

Positive seated flexion on the LEFT
Springing motion present at the R ILA only
Positive lumbosacral spring test
Positive backward bend test

What will L5 be?

L on R sacral torsion

L5 SR RR (flexed or extended)

22

Positive backward bend test = ?

Posterior motion at the sacral base

23

"Sacral rotation on an oblique axis"...define?

Treatment?

Sacral torsion + L5 rotated to SAME SIDE

Correct the L5 dysfunction first

24

Bilateral sacral dysfunctions...axis? Same as what?

Middle transverse (S3) - same as POSTURAL motion

25

Bilateral sacral dysfunction...seated flexion test finding?

NEGATIVE (falsely)

26

Flexion bilateral sacral dysfunction...lumbar curve?

Extension bilateral sacral dysfunction...lumbar curve?

INCREASED

DECREASED

27

Post-partum - common dysfunction in the mother?

Bilateral sacral flexion

28

Unilateral sacral flexion...ipsilateral ILA findings?

Significantly INFERIOR
Slightly POSTERIOR

29

Unilateral sacral flexion...describe

SB TOWARD, Rotate FORWARD

30

Unilateral sacral extension...describe

SB AWAY, Rotate BACKWARD

31

Unilateral sacral extension...ipsilateral ILA findings?

Significantly SUPERIOR
Slightly ANTERIOR