Innominate Somatic Dysfunction Flashcards
Relevance of innominates
functional problems & SD commonly implicated w/ low back pain complaint
What do innominates influence?
lymphastic, GI & GU system
3 bones of innominate
ilium, pubis, ischium
Innominate joints
2 SI joints
1 pubic symphysis
2 hip joints
Anterior bony landmarks
iliac crest
ASIS
pubic tubercle
Posterior bony landmarks
PSIS
Ischial tuberosity
Which ligaments tend to correlate with pain?
iliolumber & posterior sacroiliac ligament
Why is it difficult to treat the pelvis?
many muscles originate & insert into pelvis
Why are the innominates important biomechanically?
foundation of trunk
maintain stability of trunk during movement
transmits force during gait
Anterior pelvic tilt
ASIS goes inferior
PSIS goes superior
Ischial tuberosity goes superior
Posterior pelvic tilt
ASIS goes superior
PSIS goes inferior
ischial tuberosity goes inferior
R heel strike
R innominate rotates posteriorly (as bring R leg forward & heel strikes ground)
R toe off
R innominate rotates anteriorly
Innominate shear
all parts of innominate move superiorly
Pubic shear
pubic tubercle moves superior or inferior
Flare
assoc w/ ASIS
in flare as ASIS moves medial
Muscles & joints to check in TART screening
Quadratus lumborum Erector Spinae SI joint Piriformis Hamstring Quads Adductors
ASIS compression test
adding motion to SI joint
add posterior medial compression
What happens in a healthy ASIS compression test?
as push down on R, hand will slightly slide down & left will shift up
Standing flexion test
put hands on PSIS & have bend forward
does innominate stabilize?
asymmetry on dysfunctional side (PSIS will rise up)
R Anterior Rotated Innominate
ASIS on R is inferior
PSIS on R is superior
Public tubercles are even
R Posterior Rotated Innominate
ASIS is superior on R
PSIS is inferior on R
Pubic tubercles are even
shortened R leg
R superior innominate shear
ASIS & PSIS & pubic tubercles on R side are all shifted superiorly along w/ iliac crest
R inferior innominate shear
all landmarks on R side will be inferior compared to L
R innominate inflare
R ASIS will be tilted more medial
L innominate outflare
L ASIS is more lateral tilting compared to R ASIS
R superior pubic shear
public tubercle is shifted more superiorly on R compared to L
R inferior pubic shear
public tubercle is shifted more inferiorly on R side compared to L
What may SD of innominate relate to?
groin pain
sciatica/piriformis syndrome
