Pelvic assessment

Question 1

What determines the stability at the sacroiliac joint? (3)

Answer 1

form closure
force closure
neurological/motor control

Question 2

“sacral locking” SI joint becomes tight in…..

Answer 2

nutation

Question 3

sacral unlocking, SI joint becomes looser during..

Answer 3

counternutation

Question 4

the close packed position of the joint where no outside forces are necessary to hold the joint stable

Answer 4

Form closure

Question 5

extrinsic factors are required to maintain the stability of the joint

Answer 5

force closure

Question 6

the keystone of the pelvic ring

Answer 6

sacrum

Question 7

Pain from the SI joint is generally localized in the _______ region (94%)

Answer 7

gluteal

Question 8

referred pain from the SI joint is most often perceived in the _______ (72%)

Answer 8

lower lumbar region

Question 9

Presentations commonly associated with sacral dysfunction and/or benefiting from correction of that dysfunction:

Answer 9

Low back pain – traumatic history
Status Post Labor – History of difficult labor
Constipation
Menstrual cramps / dysfunction
Prostate dysfunction

Question 10

If nutation occurs only on one side, the ASIS will be _____ and the PSIS will be ______ on that side.

Answer 10

ASIS higher

PSIS lower

Question 11

If counternutation occurs only on one side, the lower limb on that side will probably be ______ rotated. The ASIS will be ______ and the PSIS will be ________ on that side.

Answer 11

medially
lower
higher

Question 12

A painful sacroiliac joint may also cause reflex inhibition of the __________, leading to Trendelenburg gait or lurch.

Answer 12

glut med

Question 13

the ilium on the sacrum on the high side is indicated if ASIS and PSIS on one side are higher than the ASIS and PSIS on other side.

Answer 13

upslip

Question 14

indicated if ASIS is higher on one side and PSIS is lower at the same time. (this is a posterior rotation of the pelvic innominate).

Answer 14

Anterior torsion or rotation

Question 15

The most common rotation of the innominate bones is left ________torsion or rotation.

Answer 15

posterior

Question 16

posterior sacral torsions are often caused by

Answer 16

falling onto the ischial tuberosity

Question 17

typically dashboard injuries will cause PCL tears, they may also cause this torsion of the sacrum

Answer 17

anterior torsion

Question 18

As the patient laterally flexes, the sacrum rotates slightly in the _______ direction

Answer 18

opposite