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Flashcards in upper extremity squirm Deck (28)
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1
Q

Classification of clavicle fractures that are lateral third?

A

Allman
Group 2 type 2 is operative
1. lateral to conoid
2a is medial to conoid and trapezoid so displaced
2b is torn conoid
3 is intraarticular into joint and table. arthritis risk

2
Q

Type IV and V A/c separation

A

4 is posterior and into trap.. V is more than 100% with displacement, skin tenting
VI is conjoined tendon

3
Q

Compartment syndrome sign for scapula?

A

Comolli sign

4
Q

Corocoid classifcaion

A

1 is proximal to cozrococlavicular ligament, 2 is TIP

5
Q

Glenoid classification

A
Ideberg
1a anterior rim, 1b posterior rim
2 is inferior/lateral
3 is superior
4 is medial exit fracture
5 is mix
6 is comminuted
6
Q

OR for glenoid when?

A

25% or more involvement or 5 MM step off. CONSIDER 3d econ

7
Q

When do you operate on scapula neck?

A

40 degrees translated

8
Q

Acromion fracture classification

A

1 nondisplaced
2 opening of subacromial space
3 closure of space. THREE IS OPERATIVE

9
Q

Classification of scapulothoracic dissassocation

A

Mild medium hot. 1 cm neuro intact. 2 a vascular 2 b neuro issue 3 is both neuromuscular out

10
Q

HAGL? Bankhart? Hillsachs? Who gets rotator cuff tear? What is hillsachs view

A

Humeral avulsion of glenohumeral ligaments.

labral tear, or fracture of glenoid if bony, hillsachs is humeral head fracture.

Hilsachs view is internal rotation to see posteriolateral cortex

11
Q

blood supply humeral head

A

Used to say anterior circumflex to arcuate, but now say posterior humeral circumflex contributes a lot

12
Q

parts of humerus definition

A

45 degree angle or 1 cm separation unless greater tuberosity and it is 5 mm.

Lesser tuberosity: assume posterior dislocation until proven otherwise.

13
Q

Proximal humerus malunion classification

A

2 classifications

Beredjiklian
1. tuberosity off 1 cm
articular surface incongruent
3 articular surface malalignmed

boileau
1 necrosis or impaction
2 chronic dislocation
3 surgical neck nonunion
4 malunion of tuberosity is SEVERE
14
Q

Where is radial nerve?

A

14 cm from lateral epicondyle, 20 from medial

15
Q

Acceptable humerus shaft allignment

A

20 degrees ap, 30 varus/valgus and 3 cm shortening

Nonunion risk increaesed in proximal third

16
Q

Distal humerus intercondylar fracture classification

A

Risenburg

1 non displaced
II slight displacement without rotation
III rotated
IV severe comminution

Tx is ORIF or Bag of Bones

17
Q

AO distal humerus classiation

A

A extreaarticular
B single column
C both column

18
Q

What is concern of Jupiter H type?

A

Trochlea at risk of AVN (Jupiter is 2 column distal humerus fractures)

19
Q

Olecrenon schatzker

A
transverse
transverse with dip
oblique
comminuted
oblique distal
Comminuted?
20
Q

Radial head classification

A
Mason - 4 types
Nondislaced
angulatedmight block
III comminuted and blocked
4 with a dislocation

fun fact LCL injured with 80% of them

21
Q

OR for radial head?

A

2 mm displaced of 25% of articular surface

22
Q

Insertion of mcl most important bundle?

A

Anterior bundle on sublime tubercle (Anterior medial facet of coronoid

23
Q

LUCL insertion

A

tends to avuse off of lateral epicondyle. It inserts on supinator crest

24
Q

Monteggia classification

A

Bado:
1 anterior in kids commonly
2 posterior dislocato (subclassifications from proximal to far).
2 a is coronoid level. B is metaphysical junction. C is distal coronoid, D is distal half of ulna
3 is laterally
4 is both bone FF with radial head dislocation

25
Q

Nerve with monteggia?

A

PIN

26
Q

5 ligaments of IOM?

A

Central band is key. Accessory, distal oblique, proximal oblique, dorsal oblique accessory cord

27
Q

When can you cast ulna?

A

Distal 2/3. 50% overlap and less than 10% displacement

28
Q

DRUJ suspicion of

A

5 mm shortening, ulnar styloid avulsion, subluxation on XR or wide AP space on AP