Lecture 4A

Question 1

How common are isolated problems in the lumbo-pelvic-hip complex

Answer 1

RARE

Question 2

The lumbo-pelvic-hip complex is the _____________ for static and dynamic tasks

Answer 2

primary stabilizer

Question 3

SI joint contributes to dx of nonspecific LBP in __________ of people

Answer 3

15-30%

Question 4

Men have ___________ pelvic anatomy compared to women

Answer 4

smaller

Question 5

The base of the sacrum articulates with ___________

the apex of the sacrum articulates with the ____________

Answer 5

w/ base of the 5th lumbar vertebrae

w/ Coccyx

(note: Apex is at the bottom)

Question 6

The anterior SI joint ligaments limit what motions?

Answer 6

all motions

Question 7

What is the most important ligament of the SI joint?

Answer 7

Interosseus ligament

Question 8

What movements do the interosseus ligament of the sacrum limit

Answer 8

anterior and inferior movements of the sacrum

Question 9

The long ligaments (posterior) of the SI joint limit what?

Answer 9

limit anterior iliac rotation (sacral counternutation)

Question 10

The sacrotuberous ligament limits what motion

Answer 10

Limits posterior iliac rotation (Sacral nutation)

Question 11

What motion does the sacrospinious ligament limit

Answer 11

limit posterior iliac rotation (sacral nutation)

Question 12

What are the functions of the pelvic floor muscles?

Answer 12

increase intrabdominal pressure

Provide rectal support

inhibit bladder activity

help support pelvic organs

**Assist in lumbopelvic stability **

Question 13

35 muscles attach to the SI joint, how many can move the SI joint?

Answer 13

2 muscles

piriformis and pubococcygeal

Question 14

What is the primary funtion of the piriformis

Answer 14

Hip ER and ABD

when hip is flexed over 90+ it becomes hip IR

Question 15

Pain with single leg stance is a strong indicator of __________

Answer 15

SI joint dysfunction

Question 16

What muscles are included in the “inner muscle system”

which stabilizes the SI joint and prevent hernia

Answer 16

Multifidi, TA, Pelvic Floor, Diaphragm

Question 17

The anterior portion of the SI joint get what nerves?

The posterior portion gets what nerves?

Answer 17

Posterior Rami of L2-S2

Posterior Rami of L3-S3

Question 18

Nutation/counter nutation is named based on what

Answer 18

The position of the sacrum relative to the innominates

Question 19

Sacral nutation causes the Base to move _______

the apex moves ____________

Answer 19

anterior and inferior

posterior and superior

Question 20

Sacral counternutation causes the base to move ________

and the apex to move ______________

Answer 20

superior and posterior

inferior and anterior

Question 21

What sacral movement makes the pelvic outlet smaller?

Answer 21

pelvic counternutation