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Flashcards in Pelvis Deck (23):
1

5 bony structures of pelvis

-2 iliac bones
-sacrum
-2 femoral heads/necks

2

Female vs male sacrum

-Female: less villi, more rectangular
-Male: more triangular

3

Sacroilial movement: sacrum on ilium

-Flexion: nutation
-Extension: counter nutation

4

Iliosacral movement: ilium on sacrum

-Anterior rotation/innominate extension, inferior pubic glide
-Posterior rotation/innominate flexion, superior pubic glide

5

Form Closure: vleeming

passive subsystem, joint concurrency.
-Stable situation with closely fitting surfaces, no extra forces are needed to maintain the state of the system.

6

Force closure: vleeming

Achieved through synergistic effort of the outer units, active subsystems, lateral, anterior, posterior, deep longitudinal

7

Forward bend test

Palpate B PSIS, pt flex forward
+ = first/furthest to move.
false positive: lumbar dysfunction, tightness, hypermobility

8

Marchers test (kinetic): fowler

palpate PSIS and S2, pt marches. look for innom to drop down and out.
+ = innom doesn't move (can elevate due to hip hike)

9

Leg swing

look for hard, abrupt endfeels

10

Innominate spring test

-On ASIS (A>P, cranial and caudal bias)
-Into flex with hip flex
-Into ext with hip ext
-Inf pubic glide (ext)
-Sup glide at IT (flex)

11

SI seated flexion test

Forward bend in sitting
+ = one side moves first/furthest

12

Sit-slump test: base and ILA

palpate base/S1 or ILA
motion component to positional testing

13

SI motion testing alternate position

Prone (neutral)
Prone press up (extension)
Childs pose (flexion)

14

Sacral spring test

-Nutation: P>A at S1
-Counternutation: P>A at apex

15

Stress testing pelvic girdle

-P>A
-posterior superior, and posterior inferior at ASIS

16

Laslett test

Pain provication

17

Laslett test: distraction

PA pressure on ASIS

18

Laslett test: thigh thrust test

across body, block sacrum with hand, hip flexed 90 deg, push through leg to shear innom on sacrum

19

Laslett test: Gaenslens test

posterior rotation of innominate on one side, anteiror on other side

20

Laslett test: Compression test

sidelying compression of innominate towards table

21

Laslett test: Sacral thrust test

P>A force on apex of sacrum to produce posterior shear force at base

22

Laslett test: Hip drop test

single leg toe raise, knee extended: drop quickly.
Creates superior shear on SIJ.

23

Supine Active SLR (Diane Lee)

-Form closure: manually compress
-Force closure: MMT anterior obliques (flex and rot leg)