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Flashcards in SIJ Deck (15)
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1

What is the pelvic girdle?

2 SIJs and pubic symphysis
3 joint complex
transmits and distributes forces during function from cranial to caudal and vice versa

2

Form vs force closure

Form- stability due to form or shape alone

Force- joint stability from external forces and supportive structures
Ex: muscle, ligament

3

Long posterior SI ligament

inferior margin of PSIS to border of sacrum
-restrain anterior innominate rotation

4

short posterior SI ligament

sacral body tomedial PSIS
- restrains against virtually any innominate or sacral motion

5

sacrotuberous ligament

broad origin from lower half of sacrum to ischial tuberosities
- restrains sacral nutation or flexion and posterior innominate rotation

6

Innominate internal rotation

takes place during initial contact and loading response

7

innominate external rotation

midstance to preswing

8

sacral rotation

-coupled side bending and rotation
-based on oblique axi
-rotation of the sacrum is opposite to the sidebending of the lateral spine
- Ex: Right L/S sidebending= Left rotation on left oblique axis

9

SIJ Pain provocation Tests

Patrick's test of Faber's test
-posterior pelvic pain provocation test (thigh thrust)- most sensitive

-sacral springs
-compression
-distraction
-Gaenslen's test (right and left)

10

SIJ gait assessment

-Pelvis must move symmetrically
- Should be stable in frontal plane
-observe for some type of vaulting over a longer leg
-stability in frontal plane typically from muscular deficiency

11

SIJ
Shear dysfunction

innominate, sacrum or pubes subject to excessive shearing and has been displaced and locked in abnormal position

12

SIJ
muscle imbalances

-muscle or group of muscles have abnormally high resting tone interfering with regular motion

13

Tissue sources of lumbosacral pain?

-lumbar facet joints
-soft tissue- muscles, ligaments, tenson
-intervertebral discs
-sacroiliac joint
-pubic symphisis

14

Pain pattern for Pelvic girdle pain

-Located under PSIS
-Gluteals area
- Posterior thigh
-Groin (specifically over the pubic symphysis)

15

Change in balance as pregnancy advances objective test

increased anterior-posterior sway
increased stance width

use tests like:
- short physical performance battery
-functional reach test
-gait speed