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PTRS 845 Midterm > Pelvic and SI Dysfunction > Flashcards

Pelvic and SI Dysfunction Flashcards

1
Q

3 Functions of the SI joint

A
  1. Transfer load from trunk to legs
  2. Absorb LE motion/forces
  3. Dissipate force before it reaches the L-spine
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2
Q

3 Parts of the Osseous ring

A
  1. Ilium
  2. Sacrum
  3. Pubis
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3
Q

Term: Inter-related movement between the lumbar and pelvic joints

A

Lumbopelvic rhythm

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4
Q

Term: L4-S1

A

Lumbosacral Junction

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5
Q

Facets L5-S1

  1. Orientation
  2. Function
  3. Coupling
A
  1. Frontal/Caudal (the rest of the L-spine in sagittal plane)
  2. WB (on base of sacrum)
  3. SAME direction
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6
Q

Structure: Attached from L4/L5 TP to iliac crest and restricts lumbopelvic motion

A

Iliolumbar ligament

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7
Q

Portion of Iliolumbar Ligament: Tight with flexion

A

Posterior

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8
Q

Portion of Iliolumbar Ligament: Tight with extension

A

Anterior

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9
Q

Portion of Iliolumbar Ligament: Tight with rotation and SB

A

Superior

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10
Q

Structure: Blends into quadratus lumborum

A

Iliolumbar ligament

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11
Q

2 Features that add stability to the sacrum

A
  1. Triangle shape
  2. Ridges and depressions
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12
Q

Joint Type: Anterior SI joint

A

Diarthrodial (synovial)

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13
Q

Joint type: Posterior SI Joint

A

Syndesmosis

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14
Q

2 Types of articulating surfaces in the SI joint

A
  1. Sacral surface covered in hyaline cartilage
  2. Iliac surface covered in fibrocartilage
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15
Q

4 Characteristics providing stabilty to the SI Joint

A
  1. 2 joint types in one capsule
  2. 2 types of cartilage prevent gliding
  3. Irregular joint surfaces add friction
  4. Extensive ligaments surrounding joint
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16
Q

Structure: Sacral surface/vertical plane level with S1

A

Short Arm of the Sacrum

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17
Q

Structure: sacral surface/AP plane level with S2 to S4

A

Long Arm of the Sacrum

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18
Q

Term: Sacrum moving on ilium

A

Sacroiliac motion

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19
Q

Term: Innominate moving on the sacrum

A

Iliosacral motion

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20
Q

Term: Innominate

A

Ilium

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21
Q

Term: Lumbar motion

A

Sacroiliac motion

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22
Q

Term: Flexion of the sacrum

A

Nutation

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23
Q

Term: Sacrum moving anterior and inferior

A

Nutation

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24
Q

Term: Extension of the sacrum

A

Counternutation

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25
Q

Term: Sacrum moving superior and posterior

A

Counternutation

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26
Q

Term: Unilateral nutation and counternutation

A

Sacral Axial rotation

27
Q

Axis: Axial rotation

A

Hypothetical oblique axis

Left oblique = right side moving

Right oblique = left side moving

28
Q

Term: Hip motion

A

Iliosacral motion

29
Q

Term: ASIS inferior, PSIS superior

A

Anterior rotation

30
Q

Term: ASIS superior, PSIS inferior

A

Posterior Rotation

31
Q

Functional Biomechanics: Trunk forward bend

A

Sacrum nutates, then counternutates

Innominates rotate anteriorly

32
Q

Functional Biomechanics: Trunk backward bending

A

Sacrum nutates/counternutates/remains relatively stable

Innominates rotate posteriorly

33
Q

Functional Biomechanics: Hip flexion

A

Sacrum nutates

Unilateral innominate posterior rotation

34
Q

Functional Biomechanics: Hip extension

A

Sacrum counternutates

Unilateral innominate anterior rotation

35
Q

Term: Passive stability of bones, joints, and ligaments

A

Form closure

36
Q

Term: Active/dynamic stability of muscle, fascia, or motor control

A

Force closure

37
Q

Structure: Blends into biceps femoris and gluteus medius

A

Sacrotuberous ligament

38
Q

4 (Local) Muscles of the Pelvic Girdle Inner Tube

A
  1. TA
  2. Multifidus
  3. Diaphragm
  4. Pelvic floor
39
Q

4 (Global) Muscles of the Pelvic Girdle Outer Tube Longitudinal System

A
  1. Erector spinae
  2. T/L Fascia
  3. Biceps femoris
  4. Sacrotuberous ligament
40
Q

4 (Global) Muscles of the Pelvic Girdle Outer Tube Anterior Oblique System

A
  1. Internal obliques
  2. External obliques
  3. Abdominal fascia
  4. Contralateral adductors
41
Q

3 (Global) Muscles of the Pelvic Girdle Outer Tube Posterior Oblique System

A
  1. Latissimus dorsi
  2. Contralateral gluteus maximus
  3. T/L fascia
42
Q

Term: Systems that compress the SI joint

A

Outer tube oblique systems

43
Q

3 (Global) Muscles of the Pelvic Girdle Outer Tube Lateral System

A
  1. Gluteus medius
  2. Gluteus minimus
  3. Contralateral adductors
44
Q

Term: System the copresses the SI joint, prevents shearing in SB, and aids in load transfer

A

Outer Tube Lateral System

45
Q

2 Muscles that attached directly to the sacrum

A
  1. Piriformis
  2. Biceps femoris
46
Q

Structure: When tight rotates the sacrum

A

Piriformis

47
Q

Structure: When tight counternutates the sacrum

A

Biceps femoris/HS

48
Q

Condition: MOI can include trauma, pregnancy, chronic L/S or hip problems, pelvic floor dysfunction

A

SI Joint dysfunction

49
Q

Condition: Body chart can include unilateral pain, buttock pain, LBP, or posterior leg pain to knee

A

SI Joint Dysfunction

50
Q

Condition: Aggravating Factors

  • WB activities: standing, single leg stance, hopping, running
  • Ascending/descending staris
  • Pain with change of position: sit to stand, moving in bed
A

SI Joint Dysfunction

51
Q

Term: Most reliable predictor of SI joint dysfunction

A

Pain provocation tests

3/5 + has modest predictive power

52
Q

2 mobility tests that assess SI motion

A
  1. Lumbar flexion
  2. Lumbar extension
53
Q

2 mobility tests that assess IS motion

A
  1. Gillet flexion
  2. Hip extension
54
Q

Describe how sacral dysfunction is named

A

Named after directio nof rotation and direction of axis

55
Q

Condition:

  • Difficulty with activities requiring posterior rotation
  • ASIS anterior and inferior
  • PSIS superior
  • Functionally long leg
  • Decreased hip flex and posterior rotation
A

Anteriorly Rotated Ilium

56
Q

Condition:

  • Difficulty with activities requiring anterior rotation
  • ASIS posterior and superior
  • PSIS inferior
  • Functionally short leg
  • Decreased hip extension and anterior rotation
A

Posteriorly rotated ilium

57
Q

Condition:

  • Entire ilium higher
  • ASIS/PSIS superior
  • May have decreased anterior/posterior rotation
  • Decreased hip ABD strength
A

Upslip

58
Q

Condition: ASIS more medial and PSIS more lateral

A

Inflare

59
Q

Condition: ASIS more lateral and PSIS more medial

A

Outflare

60
Q

MET: Correction of ilial anterior rotation

A

Isometric gluteal(/HS) contraction

61
Q

MET: Correction of ilial posterior rotation

A

Isometric hip flexion contraction

62
Q

CPR to Predict success of lumbopelvic manipulation

A
  1. < 18 on fear avoidance
  2. sx < 15 days
  3. No sx distal to knee
  4. L-spine hypomobility at any level
  5. Either hip with > 35 degree IR
63
Q

Condition:

  • Pain with change in position
  • Deep shift/clunk
  • Difficulty with WB activities
  • Positive stability tests
  • Active SLR +
  • Pain provocation +/-
A

Hypermobile Pelvic Girdle

PTRS 845 Midterm (13 decks)

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