SI Joint

Question 1

Compression of sacrum during weight bearing creates what

Answer 1

Keystone locking (greater force, greater resistance)

Question 2

Anterior tilt is associated with

Answer 2

Counternutation/torsion, increased lordosis, tight psoas and erector spinae, underactive gluteus Maximus, overactive hip flexors, and weak core

Question 3

Posterior pelvic tilt is associated with

Answer 3

Nutation/torsion, decreased lordosis, tight gluteus Maximus and hamstrings, underactive psoas, overactive hamstrings, and weak core

Question 4

In-flare

Answer 4

PSIS lateral, ASIS medial, weak glute medius/minimus

Question 5

Out-flare

Answer 5

PSIS medial, ASIS lateral, tight glute medius/minimus

Question 6

Location of pain for SI

Answer 6

Over buttocks, may radiate down posterior thigh into groin or down anterior thigh, unilateral pain is more common

Question 7

Intra-articulate causes for SI pain

Answer 7

Arthritis and infection

Question 8

Extra-articular causes of SI pain

Answer 8

Ligamentous injury, fx, myofascial pain

Question 9

MOI for pelvic ring fx

Answer 9

High energy blunt trauma, MVA, falls

Question 10

Anterior-posterior compression SI loading vectors caused by

Answer 10

Head-on MVA

Question 11

Lateral compression SI loading vector cause

Answer 11

Side impact MVA

Question 12

Vertical shear SI loading vector caused by

Answer 12

Fall from a height

Question 13

What is an inflammatory rheumatic diseases characterized by spine and SI joint involvement that manifests as spondylitis and sacroilitis

Answer 13

Ankylosing spondylitis

Question 14

Other s/sx of ankylosing spondylitis

Answer 14

SI joint pain pattern, severe on rest but improving with activity, iridocyclitis, onycholysis, generalized fatigue

Question 15

Dagger sign is seen with which condition

Answer 15

Ankylosing spondylitis`

Question 16

What condition is a bone remodeling disorder that begins with excessive bone resorption followed by an increase in bone formation

Answer 16

Paget’s disease

Question 17

Up-Slip MET

Answer 17

Laying on table supine pulling leg into hip IR, slight abd, slight flex and pull traction hold and then exhale and thrust

Question 18

Posterior pelvic tilt MET

Answer 18

Pt side lying or supine, leg abducted and ext off side of table and resist hip flexion

Question 19

Anterior pelvic tilt MET

Answer 19

Pt prone or supine leg abducted and flexed, stabilize opp hip and resist hip ext

Question 20

Out-flare MET

Answer 20

Supine or hook lying,, pt adduct or ER/abd

Question 21

In-flare MET

Answer 21

Pt. Supine or hook-lying, knees flexed have potion abd or IR/ADD