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OS II > Innominates > Flashcards

Innominates Flashcards

1
Q

Via what joint is medial, posterior and superior aspect of the innominate transmitting weight from the axial spine?

A

Sacroiliac joint

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2
Q

What joint stabilizes the medial, anterior and inferior as of the innominate?

A

Pubic symphysis.

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3
Q

The combined work done by the extremely strong posterior ligament, and the articulation at the sacroiliac joint, helps to keep which inferior joint together?

A

pubic symphysis.

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4
Q

The descriptions below describe the function of what structure(s)?

  • Designed to limit abnormal or excessive movement at a joint.
  • Permits normal motion
  • Slightly elastic
  • Are part of a reflex response to excessive movement
A

Ligaments

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5
Q

The iliolumbar ligament runs from where to where?

A

From the ilia to the 5th lumbar vertebrae.

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6
Q

The sacrospinous ligament runs from where to where?

A

From the sacrum to the spine of he ischium

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7
Q

The sacrotuberous ligament runs from where to where?

A

From the sacrum to the ischial tuberosity

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8
Q

The sacroiliac ligament runs from where to where?

A

Covers much of the sacroiliac joint, anterior and posterior.

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9
Q

Which ligament restricsts anterior motion of L-5, and may restrict rotatory movement of L-5, and in conjunction with sacroiliac helps to stabilize anterior motion of the lower lumbar spine?

A

Iliolumbar ligament

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10
Q

Which ligament blends with the sacrotuberous ligament and is divided into above and below into a greater and lesser siatic foramen and is part of the coccygeus muscle?

A

Sacrospinous ligament

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11
Q

Which ligament, along with sacrospinous ligament helps to restrain anterior movement of sacrum? It also is the site of attachment for Gluteus maximus, long head of biceps femoris tendon, piriformis and connects with fascia of the pelvis.

A

Sacrotuberous

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12
Q

The anterior portion of this ligament runs fro 3rd sacral segment to auricular surface of ilium and lateral preauricular sulcus.

A

Sacroiliac ligament

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13
Q

The posterior aspect of the this ligament partly covers the interosseous, from lateral sacral crest to PSIS and internal iliac crest

A

sacroiliac ligament

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14
Q

What does the posterior part of the sacroiliac ligament cover?

A

Partly covers the interosseous, from lateral sacral crest to PSIS and internal iliac crest.

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15
Q

A 22yM med student presents to clinic with complainsts of lwo back pain worse after sitting in class all day. Aleve gives some relief but returns the next full class day. One PE there are some TART changes on L4-L5, L5-S1 and diagnose and successfully ttreat hi for lumbar and pelvic somatic dysfunction. what is the cause of his dysfunction?

A

Posterior Pelvic tilt from slouching during lecture

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16
Q

With posterior pelvic tilt, what are the changes you’d notice in lumbar spine, and ischium, and location of pressure points

A

Posterior pelvic tilt accompanies increased kyphosis, ishcial travels forward, new pressure points at sacrum and spine.

17
Q 
A 36yF G4, P2, A0, L4 presents with urinary incontinence since last delivery of her last child 2 yrs ago. On physical exam you find an otherwise healthy patient with anteriorly tilted pelvis accentuated lumbar lordosis and a grade 4 cystocele into the vaginal vault accentuated on Valsalva. Your recommendations for this patient would be? 
A. Muscle energy to the pelvis
B. Isometric (keigel) exercise
C. uro-gynecology evaluation 
D. A and C
E. All of the above
A

Dont KNow

18
Q 
A 23yF presents with low back pain mainly on the left side, started last evening and is reieved 85% with aleve but not tylenol. She reports her period started two weeks ago. You diagnose her with Mittelschmerz or ovulatin pain and know that most ocmmonly attributed ligament to be responsible for the pain is? 
A. Iliolumbar
B. Sacrospinous
C. Sacrotuberous
D. Sacroliac ligament
E. Interpubic symphysis
A

Dont know

19
Q

With right heel strike, in what directions did the right and left innominate rotate?

A

With right heel strike, the right innominate rotates posteriorly and the left rotates anteriorly.

20
Q

With right heel strike, in what direction is the anterior and superior surfaces of sacrum rotated, and what direction is the spine rotated?

A

Anterior surface is rotated to the left and the superior surface is level. The spine is straight but rotated left.

21
Q

With right leg mid-stance (left left lift off), in what direction is the right innominate rotated, the sacrum, and lumbar spine?

A

Right innominate is rotated anteriorly.

The sacrum is rotated right but SB left and lumbar spine is rotated left but SB right.

22
Q

At left heel strike, explain direction of motion for the left innominate, and right innominate after toe-off.

A

With left heel strike, left innominate begins anterior rotation. After toe-off, right innominate begins posterior rotation.

23
Q

With left heel strike, in what direction is the anterior surface of sacrum rotated? the spine?

A

Anterior surface of sacrum is rotated right and spine is also rotated right.

24
Q

During left leg stance, in what direction are the sacrum and lumbar spine rotated and SB?

A

The sacrum is rotated left and SB right. The lumbar spine is rotated SB left and rotated right.

25
Q

A 26yM soccer player presents with complaints of right side low back pain that at times keeps him from playing. Pain is worse with kicking and cutting right to left. He states it feels as through his pelvis locks up. His structural exam is: Standing flexion test positive on right, seated flexion test is negative; Pubes are level, ASIS is inferior on the right, PSIS is superior on the right. What is the diagnosis?

A

Anterior innominate rotation

26
Q

Describe what is meant by the form closure.

A

Form closure describes the stability of the joint from the design of the pelvic anatomy.
-Sacrum and ilium has both flat and rough ridges. together they provide highest coefficient of friction and protect against shearing. The position of the bones in the SIJ creates a keystone-like shape, and the sacrum wider superior and narrower inferior shape allows the sacrum to be wedged in between the ilium.

27
Q

Describe what is meant by Force closure.

A

Describes the other forces acting across the joint to create stability. This is generated by structures with a fibre direction perpendicular to the sacroiliac joint and is adjustable according to the loading situation. Some contributing factors include: muscles, ligaments, and thoracolumbar fascia. Force closure is especially important during activities like walking when unilateral loading of the legs creates shear forces.

28
Q

The form closure mainly functions to _ the pelvis, while the force closure allows for_.

A

stability

mobility

29
Q

Which ligament restricts nutation?

A

Sacrotuberous ligament

30
Q

Which ligament restricts nutation and side bending?

A

Iliolumbar ligament

31
Q

Which ligament restricts counter nutation

A

Long and dorsal sacroiliac ligament.

32
Q

During anterior innominate rotation, what is the orientation of the ASIS, PSIS, and medial malleolus?

A

ASIS is inferior
PSISI is superior
Medial malleolus is inferior (long)

33
Q

During posterior innominate rotation, what is the orientation of the ASIS, PSIS and medial malleolus?

A

ASIS is superior
PSIS is inferior
medial malleolus is superior.

34
Q

During superior shear, what is the position of the ASIS, PSIS, and medial malleolus on the affected side?

A

ASIS and PSIS are superior.

Medial malleolus is also superior and thus short.

35
Q

During inferior shear, what is the position of the ASIS, PSIS, and medial malleolus on the affected side?

A

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

36
Q

Which muscles induces Anterior tilt? Posterior tilt?

A

Anterior tilt induced by: Rectus femoris, and erector spinae

Posterior tilt induced by: gluteus maximus, hamstring, and rectus abdominis and external oblique muscles.

OS II (2 decks)

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