Lecture 02 Spinal Mechanics Fryettes Principals Flashcards

1
Q

Somatic dysfunction

A

Impaired altered function of related components of somatic system: skeletal, arthrodial, myofascial, musculature, lymph, neural

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2
Q

3 ways to evaluate for somatic dysfunction

A
  1. Compare active and passive ROM
  2. Compare R and L
  3. Consider quality of motion
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3
Q

What is flexion

A

-decrease angle between bones of a joint

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4
Q

What is extension

A

-increase angle between bones of a joint

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5
Q

What motion are vertebrae capable of

A
  • flexion
  • extension
  • rotation
  • side bending
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6
Q

How do you perform a segmental exam on a patient?

A
  • pt prone/seated
  • anteriorly compress R TP–> load and spring–> induces L rotation
  • repeat for L TP–> induce R rotation
  • repeat w/flexion and extension and compare to neutral
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7
Q

What is a SD called when vertebrae will NOT rotate RIGHT

A
  • push on L TP and will not rotate right
  • restricted motion to the RIGHT
  • notice hard end feel when pushing on LEFT TP= L PTP
  • live sin the left (wont go right)= ROTATED LEFT SD
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8
Q

Fryettes 1st principal

A

-when thoracic and lumbar spine is in NEUTRAL position coupled motions of side bending and rotation for a GROUP of vertebrae are such that side ending and rotation occur in OPPOSITE directions (rotation toward convexity)

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9
Q

Type I mechanics/SD

A
  • found in NEUTRAL
  • T1-L5
  • rotation toward convexity
  • found at OA joint
  • sidebending and rotation opposite directions
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10
Q

What is TONGO?

A

-used to dx type 1 SD
-T= type
-O= one
_N= neutral
-G= grouped curve
-O= opposite (side bend and rotation)

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11
Q

Fryettes principle 2

A
  • when thoracic and lumbar spine is sufficiently forward or backward bent (NON-neutral) the coupled motions of sidebending and rotation in a SINGLE vertebral unit occur in the SAME direction
  • rotation and sidebending to same side
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12
Q

Type II mechanics/SD

A
  • found in flexion/extension (non-neutral)
  • rotation toward concavity
  • rotation and side bend in same side
  • rapid onset: trauma, sudden movement, unusual position
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13
Q

Atypical Cervical SD

A
  • OA joint–> MODIFIED type I motion
  • evaluate in NEUTRAL
  • motion is coupled= always get some rotation if head side bent and always get some side bending if head is rotated
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14
Q

Cervical SD

A
  • C2-C7 (typical cervical vertebra)
  • check segment flexion, extension, neutral
  • usually side bending and rotation to the SAME side (TYPE II)
  • compensatory changes from other segments can lead to SB and rotation to opposite sides
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15
Q

T1-3NRRSL

A
  • TYPE I SD
  • T1-3 (group)
  • Neutral
  • Rotated Right
  • Side bent Left
  • restriction to rotating L and side binding R
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16
Q

T6ERRSR

A
  • Type II SD
  • T6
  • Extension
  • Rotated right
  • Side Bent Right
  • Restricted to flexion, SB L, R L
17
Q

Fryettes 3rd principle

A
  • CR Nelson and others added 3rd principle in 1948
  • initially movement of vertebral segment in any plane of motion will modify movement of that segment in other planes of motion
  • motions are coupled due to arrangements of facets