SI Joint

Question 1

Innominate Rotation

Answer 1

-anterior rot on one side and posterior on the other
-ASIS OR PISIS different heights and superficialness

Question 2

Innominates

Answer 2

-ischium, ilium, and pubic bone fused together at the acatabulum
-articulates with the sacrum= SIJ

Question 3

Sacral Nutation

Answer 3

-flexion in relation to innominates
-base moves ant and inf
-Apex moves pos and sup

-Posterior innominate, PPT, decreased lordosis, hip flx
-ASIS up, PSIS down

Question 4

Sacral Counternutation

Answer 4

-extension in relation to innominates
-base moves post and sup
-Apex moves ant and inf

-Anterior innominate, APT, increased lordosis, hip ext
-ASIS down, PSIS up

Question 5

Upslips and Downslips

Answer 5

Upslip
-ASIS, PSIS, ISCH tub ALL up on one side
-leg forced up

Downslip
–ASIS, PSIS, ISCH tub ALL down on one side
-rare
-leg pulled down