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Adjustive technique lecture > Basic biomechanics review > Flashcards

Basic biomechanics review Flashcards

Just a general review of key #s associated with biomechanics of the thoracic region.

1
Q

What is the general shape of the vertebral body in thoracic region?

A

square, wedge-shaped vertically, 1-2 mm shorter in front

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2
Q

What is the kyphotic curve degree measurement in thoracic?

A

b/t 20-40 degrees

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3
Q

Which way to TPs point?

A

laterally and backwards.

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4
Q

What is the height of the IVD?

A

5 mm

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5
Q

body to disc ratio?

A

1:5

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6
Q

What does the low ratio decrease?

A

flexibility

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7
Q

What angle do the articular facets form?

A

60 degrees to horizontal plane. 20 degree to vertical

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8
Q

What field of plane are the articular facets in?

A

upper=coronal. thoraco-lumbar = more sagittal

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9
Q

What is there convexity/concavity?

A

flat

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10
Q

Which direction does the SA facet face?

A

posterolateral & superior

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11
Q

Which direction does the IA facet face?

A

anteromedial & inferior.

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12
Q

GROM lateral flexion?

A

20-40 degrees to each side

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13
Q

SROM lateral flexion?

A

average combined range - 6 degrees T1-T9; 8-9 degrees T10-T11

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14
Q

IAR lateral flexion?

A

CL Sup sub-adjacent vertebral body.

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15
Q

What movement is couple with Lateral flexion in the upper thoracics?

A

IL rotation - SPs rotate into convexity

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16
Q

Couple rotation of Lateral flexion in mid thoracics?

A

minimal couple rotation

17
Q

Coupled rotation in lower thoracics with lateral flexion?

A

minimal coupled rotation to the CL direction. - SPs deviate to concavity

18
Q

Which way do the articular facets glide in lateral flexion?

A

CL side = gaps. IL side = approximate.

19
Q

GROM rotation ?

A

30-45 degrees to each side

20
Q

SROM rotation?

A

uniform until lower 3-4 segments. Average combined range = 8-9 degrees T1-T10; 2 degrees T10-T11

21
Q

IAR rotation?

A

CL center of corresponding vertebral body

22
Q

Which way does lateral flexion occur with rotation in upper thoracics?

A

minimal lateral flexion to same side

23
Q

Which way to the facets glide on the side of rotation?

A

inferior glide medially relative to superior facet below on the side of rotation.

Adjustive technique lecture (4 decks)

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