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ABOS > Spine/Hand > Flashcards

Spine/Hand Flashcards

1
Q

spinal cord injury location with highest rate of recovery

- lowest chance change of recovery?

A

conus

lowest -> complete thoracic

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2
Q

Re: sagittal alignment

- how far should C7 plumb line be from back of sacrum?

A

4-5 cm

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3
Q

% people that improve nonop for C spine HNP

% who get long term benefit from cervical NRB

% of those with lumbar HNP that resolve with nonop

A

75%

70%

90%

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4
Q

where does sympathetic chain end?

A

T6/7

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5
Q

nerve root for FHL

A

S2

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6
Q

TLICS value that indicates surgery

A

> 4 (5 and up)

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7
Q

Sternoclydomastoid innervation

A 
CN 11 (spinal accesory)
- along with trap
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8
Q

most common PE in cervical myelopathy

A

hoffman

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9
Q

Torg ratio

A

diameter of spinal canal vs diameter of vertebral body

< 0.8 = severe stenosis

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10
Q

most mobile segment of lumbar spine

A

L4/5

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11
Q

1st radiographic finding in pediatric diskitis

A

loss of normal lordosis

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12
Q

incidentals on MRI of L spine

A

30% -> HNP
80% -> bulding disc
90% -> DDD

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13
Q

Spinal cord monitoring questions

  • significant SEP change
  • appropriate MAP
A

Decrease 75% amplitude on SEP is concerning

MAP > 90

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14
Q

What does burst activity indicate in mechanical electromyography?
- sustained train?

A

burst = contacting nerve root (not bad)

sustained train = significant root traction

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15
Q

this prevents dorsal subluxation of lateral bands

A

transverse retinacular ligament

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16
Q

where do lumbricals originate from

A

FDS

1/2-> innervated by median n
3/4 -> innervated by ulnar n

17
Q

distribution of pressure btw distal radius and ulna

  • ulnar neutral
  • ulnar postitive +2.5
  • ulnar neg - 2.5
A

neutral - 80/20
+2.5-> 60/40
-2.5-> 95/5

18
Q

structure that anchors the volar plate

order of release for flexion contracture

A

checkrein ligaments

checkrein-> volar plate-> proper collateral> extensor tendon tenolysis

19
Q

The only nerve in an extensor wrist compartment

A

PIN

4th

20
Q

Which tendon is usually pathological in trigger finger?

A

FDP

21
Q

Tendon typically used for opponnens plasty

A

EIP

22
Q

Cotton Loder position

  • position?
  • significance?
A

extreme flexion and ulnar deviation to hold DR reduction

can lead to carpal tunnel syndrome

23
Q

Factor most assoc with loss of reduction nonop Distal Radius

Pt factor assoc with worse outcomes re: DR fx

A

loss of reduction -> older ppl

Depression

24
Q

pressure injection material with highest likelihood of amputation

A

organic solvents

25
Q
  • ***Time from injury of Jersey finger when you need to do 2 stage revision
A

> 3mos

- b’c the pulleys scar down

26
Q

Dorsal DIP dislocation blocks to reduction

  • closed
  • open
A

closed-> volar plate

open -> FDP

27
Q

fix for lumbrical plus finger

A

release the lumbrical

28
Q

Duration of immbolization for scaphoid fx

A

distal- 3 mos
waist- 4 mos
proximal- 5mos

29
Q

Benefits of fixing non-displaced scaphoid

cost difference?

A

decrease time to union
earlier return to sport/work

no difference in cost

30
Q

Abx’s for infection from Leeches

A

Cipro
Bactrim 2nd liner

“Those leeches were Cipro’n on some Blood/Bactrim”

31
Q

most important fingers when it comes to salvage in amps

A

Thumb and MF

least so -> IF

32
Q

Most sensitive carpal tunnel clinical exam test

A

Durkans (compression to CT)

33
Q

Most important factor in nerve recovery after repair

A

Age (older is worse)

34
Q

What is the Leash of Henry

A

radial recurrent arteries

35
Q

Arcade of Frohse

A

supinator arch

36
Q

Most common location of PIN compression

A

Arcade of Frohse

37
Q

when does grip return after CTR

A

returns to proep level around 3 mos

120% by 6 mos

ABOS (14 decks)

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