Innominates Flashcards Preview

OS II Exam #1 > Innominates > Flashcards

Flashcards in Innominates Deck (20):
1

Function of Ligaments

limit abnormal or excessive movements at a joint
permit normal motion
slightly elastic
part of a reflex response to excessive movement

2

Iliolumbar ligament

from ilia to 5th lumbar vertebrae
restrict ant. motion of L5
upper part of sacroiliac lig. also attaches to L5 but blends in w/ iliolumbar lig. Also stabilizes anterior motion of the lower lumbar spine

3

Sacrospinous ligament

sacrum to spine of the ischium
divides space above and below into a greater and lesser sciatic foramen
part of the coccygeus m.

4

Sacroiliac ligament (anterior, interosseous, dorsal)

covers much of the sacroiliac joint, ant. and post.
restrains anterior movement of sacrum
glut. max., long head of biceps femoris tendon, piriformis all attach
connects w/ fascia of the pelvis

5

pubic symphysis

secondary cartilaginous joint
surfaces of the articulating bones are covered w/ hyalin cartilage and the bones are united by strong fibrous CT and or fibrocartilage
strong, slightly moveable joint
fibrocartilagenous joint
has a disc the interpubic disc

6

flexors

pull pelvis anteriorly
iliacus
psoas
rectus femoris
sartorius

7

extensors

pull pelvis posteriorly
semimembranosus
semitendinosus
gracillis
sartorius
biceps femoris
gluteus maxius
adductor magnus

8

adductors

stabilize and pull medially
adductor magnus
adductor brevis
adductor longus

9

abductors

stabilize and pull laterally
gluteus medius
gluteus minimus
tensor fascia lata

10

external rotators

externally rotate
piriformis
obturator internus/externus
gemellus superior/inferior
quadratus femoris

11

+ standing
+ seated

sacral

12

- standing
+ seated

sacral

13

+ standing
- seated

innominate

14

- standing
- seated

normal

15

anterior innominate rotation

ASIS is inferior
PSIS is superior
medial malleolus is inferior (long)

16

posterior innominate rotation

ASIS is superior
PSIS is inferior
medial malleolus is superior

17

superior shear

ASIS, PSIS, and medial malleolus are superior on the affected side (short)

18

inferior shear

ASIS, PSIS and medial malleolus are inferior on these affected side (long)

19

innominate flares

flare is apparent when the ASIS is more medial on one side compared to the other
measure from the xyphoid to each ASIS
the closer ASIS is the inflare if found on the die with the positive pelvic compression

20

public shears

positive standing flexion test: on dysfunctional side the innominate as it articulates with the sacrum will lock out and move most cephalad
pelvic compression test: pain on affected side with
often see with rotations or upslips