Lumbopelvic Flashcards Preview

BioMech Spine DPT705 > Lumbopelvic > Flashcards

Flashcards in Lumbopelvic Deck (23)
Loading flashcards...
1
Q

What are the 4 primary functions of the pelvis?

A
  • Bear weight
  • Transfer loads from the axial skeleton to append skeleton
  • limited mobility
    • ->more efficient transfer of loads
  • muscle attachments
2
Q

Do males or females have more prominent bony features on the pelvis?

A

Males

3
Q

Wide oval pelvic inlet
or
Narrow heart shaped inlet

Which is male and which is female?

A

First female

second male

4
Q

Do males or females have a narrow distance between ASIS and ischial tuberosities?

A

Males

5
Q

A lateral facing acetabulum and an anterior facing acetabulum. Which belongs to female and which to male?

A

Male-lateral facing

Female-anterior facing

6
Q

Whose pubic arch is wider a males or a females?

A

Females (child birth)

7
Q

Males have a smaller base of support in sitting.

T or F

A

True

8
Q

If you are in a R unilateral stance, What are the 2 primary muscles that are acting to keep the pelvis level?

A
  • Glut med acting to pull into R lat tilt

- Left Lumbar erector spinae to also pull pelvis into lat tilt 1

9
Q

Ipsilateral lumbopelvic rhythm serves what purpose?

A

To increase overall trunk motion for function

10
Q

What is the correct order of movement with the lumbar spine and pelvis with flexion/extension?

A

Flexion- lumbar to pelvis

Extension-pelvis to lumbar

11
Q

LBP patients tend to differ in what way in lumbopelvic movement?

A

Tend to do it backwards

12
Q

How would you perform the Gower sign?

A

Ask patient to bend forward as far as they can and then return to standing
If they have to “thigh climb” then the test is positive

13
Q

What is the instability catch sign?

A

Patient asked to bend forward as far as they can go and return to standing
If they cannot return due to sudden painful catch in low back then its positive
Thought to indicate spinal instability

14
Q

What are the 3 aberrant movement patterns (sagittal)?

A
  • gower sign
  • instability catch
  • lumbopelvic rhythm
15
Q

What is the only aberrant movement pattern with good interrater reliability?

A

Gower sign

16
Q

The 2 facets on the sacrum face in what direction?

A

posteriorly

17
Q

What is the lateral region of the sacrum called? And what does it articulate with?

A

ala

-ear shaped and articulates with the ilium

18
Q

What are the primary ligaments that stabilize the SI joint?

A
  • Anterior sacroiliac
  • Iliolumbar
  • Interosseous
  • Posterior sacroiliac
19
Q

What are the secondary ligaments that stabilize the SI joint?

A
  • Sacrotuberous

- Sacrospinous

20
Q

Nutation is what motion of the sacrum?

A

forward nod

21
Q

In bilateral hip extension while in prone, what does the sacrum do?

A

Counternutates

22
Q

What is the primary purpose of nutation/counternutation?

A

stress relief within the pelvis

23
Q

What are the secondary rolls of nutation?

A
  • increases articular stability
  • optimizes load transfer
  • ligaments get support from muscles