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Flashcards in Spinal Lab 2 Deck (31):
0

What shape or letter are the zygoapophyseal joints (facets)?

'C' shaped

1

What do the zygoapophyseal joints restrict?

Restricts extension & rotation at bony end range

2

What do the zygoapophyseal joints allow for in the L-Spine?

Flexion

3

How are L5 & S1 zygoapophyseal facets different?

S1 are larger allowing for weight bearing
The sacrum is pointed anteriorly & the spine is posterior, this blocks L5 from forward slippage

4

What movements occur at the SI joint?

Rotation
Superior/inferior translation
Anterior/posterior translation

5

Describe the shape of the SI joint
What does it resist?
What movements does it allow for?

Auricular
Knuckle shaped
Resists superior & inferior translation
Allows for rotation when walking

6

most fibres of the interosseous ligament are __ in direction

horizontal

7

with the forward flexion test the side that moves up is actually the __ side not the __ side. It is the __ locking onto the __ on that side.

tight side not the lax side. It is the innominate locking onto the sacrum on that side

8

what muscle helps assist the sacrotuberous ligament from preventing the sacrum from rotating anteriorly?

bicep femoris

9

with the sitting forward flexion test the innominate is locked in because the patient is sitting on it therefore its testing the __

sacrum

10

how do you know whether to treat the inflare or outflare?

treat the side of disfunction based on the forward flexion test

11

what is the fibre direction for the anterior, superior and posterior fibres of the iliolumbar ligament?

transverse

12

what movement does the anterior, superior and posterior fibres of the iliolumbar ligament prevent?

side bending

13

how do you test the anterior, posterior and superior fibres of the iliolumbar ligament?

patients lies on side, therapist landmarks L5, slide in to the base of the SP and push vertebrae down toward table while stabilizing the innominate with the free hand

14

why is the vertebral body concave?

weight bearing

15

the __ forms the superior and inferior portion of the vertebral foramen

pedicle

16

the ___ + ___ form the neural arch

pedicle + lamina

17

___ combine to form the SP

lamina

18

the ___ of the facets will dictate what movement they are guiding

orientation

19

Pars interarticular fracture occurs obliquely between ___ and __

superior and inferior articular facets

21

** Why is the articular facets of L1 different then L5-S1?

To prevent anterior translation of L5

22

Why is a diagonal/oblique chain so important to everyday life?

chain will assist in rotation at the hips which allows for proper gait mechanics

23

what impact would jumping have on the symphysis pubis, if you landed on one foot?

landing forces can be detrimental because of superior translation

24

What forces can the symphysis pubis joint resist, which does it allow for?

resists - shearing (superior & inferior)
allows - rotation & compression

25

What movement would stress the anterior SI ligament?

-hip extension
-distraction

26

What happens to the SIJ if hamstrings are more active than the glutes?

hamstrings will create a shearing force on the SIJ.
Glutes need to fire before hamstrings to reinforce the joint

27

Why is the dorsal SI ligament important for stability & mobility of the SIJ?

stability: holds the ilium to the sacrum (reinforcing the auricular surfaces)
mobility: limited but definite rotation

28

what is the role of the iliolumbar ligament?

-connect L4/L5 vertebrae to the ilium
-strengthen lumbrosacral jt.
-prevents anterior translation of L4/L5
-resists side bending

29

What muscle is associated with the iliolumbar ligament?

Quadratus Lumborum

30

if the ilium is restricted what impact would it have on the iliolumbar ligament?

iliolumbar ligament will also be restricted, which will attribute to stiffness/restriction of the QL

31

The Sacrotuberous ligament maintains stability of the SIJ & pelvis during what movement?

What is it's main role?

Helps keep the pelvic girdle intact while resisting rotation with hip flexion

Force attenuation