Ankle Fractures (Pod med) Flashcards
Remember these structures
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Remember these structurez
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The OTTAWA ankle rules:
If pain exist in A
PLUS one or more of the following:
B
C
D
A : near one or both of the malleoli
B: Age < 55 years old
C: Inability to weight bear
D: Bone tenderness over the the posterior edge or tip of either malleolus
What is the normal space for Tib-Fib clear space on the mortise view?
less than 5 mm
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What is Mortise x-ray view?
With the A in B degrees of C rotation
Mortise view is useful in valuation of articular surface
between D and E
A: Ankle
B: 15-25 degrees
C: Internal rotation
D: Talar dome
E: Mortise
Where is the Medial Clear space?
What is the normal value?
Medial clear space is between
Lateral border of medial malleous
and
Medial Talus
The normal value is less than 4 mm
And more than 4mm suggest lateral shift of talus
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Fibular fracture above the level of the ankle joint indicates
that the A is torn.
A: Distal anterior tibiofibular ligament
Fracture of fibula above its anterior tubrcle strongly suggests that the B is completely distrupted.
B: Tibiofibular syndosmosis
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Fracture of fibula above the level of ankle joint WITHOUT accompaying fracture of the medial malleolus indicates rupture of A
A deltoid ligament
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A fracture of the medial malleolus indicates that the deltoid ligament is intact
A Transverse
What is Maison neuve fracture?
High fracture of the fibula
fracture of the medial malleolous
Tear of tibiofibular ligament
Rupture of interoseous membrane
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What does the inversion stress view shows?
This angle helps to diagnose tears of lateral collateral ligament.
The anterior-draw stress film provides a useful measurment for determining injury to the
A ligament
A : anterior talofibular ligament
Values of upto A of seperation between the talus and distal tibia are considered normal
Values between B and C may be normal or abnormal and the opposite ankle should be tested
Values above D are always abnormal
A: 5mm
B: 5mm and C: 10mm
D: 10mm
What are the primary goals for management of ankle fractures?
- Restore function
- Return to normal function
What are different types of fractures?
Hint: 8 different
- Spiral
- Oblique
- Transverse
- Comminuted
- Wedge
- Impacted/Compression
- Displaced
- Open or compound
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Supination Adduction
It occurs in A% of ankle fractures
The foot is fixed on the ground in B position with an C force is applied to the talus
A: 20-25%
B: Supination C: Adduction
Suppination Adduction
Stage 1
Supination results in a tear of the A ligament
or
An B fracture of the C below the level of tibial plafond
A: Lateral collateral ligament
B: avulsion
C: Lateral malleolus
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Supination Adduction
Stage 1
A rupture with or without B fragment and or C fracture of D malleoli below the ankle mortise
A: lateral ligament
B: Avulsion
C: transverse
D: lateral
Supination Adduction
Stage 2
A fracture of the B malleoli
A: Vertical
B: Medial
Supination Adduction
Stage 2
More talar tilt results in the medial malleolus being
pushed of in a A or B way
A: Vertical
B: Oblique
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What is the name of this fracture?
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Supination Adduction
What does the grey arrow show?
What does the orange arrow show?
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Grey arrow: Lateral injury, transverse fibular fracture below or at the level of mortise
Orange arrow: Medial injury, vertical shear type, medial malleolar fracture
Pronation- Abduction
It occurs very A
Stage 1: B medial C fracture
Or D ligament rupture
A: Rarely
B: Transverse C: Malleoli
D: Deltoid
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Pronation Abduction
Stage 2: As the abductory force continues to push the talus A
Creating injury to both B and C
In this stage the D is still intact
Pronation Abduction
A: Laterally
B: Anterior tibiofibular
C: Posterior tibiofibular
D: interossious ligament
Pronation Abduction
Stage 3: In this stage the abductory force has continued into the fibula creating a fracture at A
that is B on AP view
But appears C on a lateral view
Pronation Abduction
A: at or above the ankle joint
B: short and oblique
C: transverse
Pronation Abduction
Stage 3: A fracture typically proximal to mortise
often with a B fragment
The lateral view is important to differentiate it from
C fracture
Pronation Abduction
A: Fibula
B: Butterfly
C: Supination Eversion
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Supination External rotation
This is the A common fracture
In stage 1:
Rupture of B ligament
Or a fracture of C, also known as D
Supination External rotation
A: Most common
B: Anterior tibiofibular ligament
C: Lateral distal tibia
D: Tillaux- Chaput fracture
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Supination External Rotation
Stage 2: Spiral fracture of A at the B level
The most commonly encountered ankle fracture
Supination External Rotation
A: Fibula
B: Syndosmotic level
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Supination- External Rotation
Stage 3: As the force progresses it will involve either a rupture of A
Or the fracture of B of the tibia
Also known as the C fracture
Supination- External Rotation
A: Posterior tibiofibular ligament
B: Posterior Malleolus of the tibia
C: Volkman’s fracture
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Supination External rotation
Stage 4: A ligament tear or B transverse fracture
A: Deltoid B: Medial Malleolus
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Supination- External Rotation
Hallmarks of this injury:
Injury begining at the A aspect of the fibula
A: Lateral
Pronation External rotation
With the foot in a fixed pronated position, the force
starts along the A aspect of the tibia
Stage 1: Rupture of B ligament
or transverse fracture of C
A: Medial
B: Deltoid
C: Medial Malleolus
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Pronation external rotation
As the injury progresses forward to stage 2, the talus rotates further laterally putting tension on the A ligament resulting in either rupture of this ligament or an avlusion fracture of B Also known as C fracture
A: Anterior inferior tibiofibular ligament
B: anterior portion of fibula or tibia
C: Volkman’s fracture
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Pronation External rotation
As the force continue pass stage 2,
Rupture of A memabrane begin to occur distally at the level of B
A: Intersous membrane
B: Ankle joint
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Pronation External Rotation
Stage 3 fracture
High A fracture with B
This fracture can be at various levels of fibula
A: Fibular fracture
B: Interosseus membrane
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Pronation External rotation
If the forces progress into stage 4
either a rupture of A
or a fracture of B also know as C occurs
True diastasis fracture
A: posterior tibiofibular
B: Posterior malleoules
C: Volkman fracture
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Pronation External Rotation
The main hallmark is the A
A: High fracture of the fibula
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What stage and type of injury has occured?
A.
B.
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A. Stage 4
B. Pronation External rotation
because the fracture has occured proximally
Exam
Weber Classification
Weber A
Weber B
Weber C
Concept!
A: Fibula distal to mortise
B. Fibula at level of mortise
C: Fibula proximal to mortise
The higher the the fibula the more severe the injury
Maionneure fracture:
Fracture of A with B disruption
A: Proximal fibula
B: Syndesmotic disruption
Volkman Fracture
Fracture of A attachment of B
C fracture type
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A: tibial attachment
B: PITFL
C: Posterior Malleolar fracture
Tillaux- Chaput fracture
Fracture of tibial attachment of A
A: AITFL
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Pott fracture
In Pott fracture,
the fibual is fractured above A
The B is ruptured
The C is laterally subluxed
A: the intact distal tibiofibular syndesmosis
B: Deltoid
C: Talus
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Dupuytern fracture
This fracture usually occurs A above the B
With disruption of the C ligament
and Typically tear of the D leading to ankle instability
A: 2 to 7 cm
B: dital tibiofibualr syndesmosis
C: Medial collateral ligament
D: syndosmosis
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Wagstaffe-Lefort fracture
In this fracture, the medial portion of the A is avulsed
at the insertion of the B
the C however, remains intact
A: Fibula
B: anterior tibiofibular ligament
C: ligament
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Bosworth fracture dislocation
A fracture with posterior dislocation of B segment behind tibia
A: Fibular fracture
B: Proximal fibular
The terms A, B, and C all have been used to intraarticular fractures of the distal tibia.
A: tibial plafond fracture
B: Pilon fracture
C: Disal tibial explosion fracture
Classify this fracture
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Supination abduction (external rotation)
stage 4
Classify this fracture?
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Pronation abduction
stage 3
What are the 3 indications for non-operative short leg walking cast/boot?
- 3.
- Isolated nondisplaced medial malleolus fracture or tip avulsions
- Isolated lateral malleolus fracture with < 3mm displacement and no talar shift
- Posterior malleolus fracture with < 25% joint involvment
EXAM
What are the 7 indications for Operative open reduction internal fixation?
- 7.
- Any talar displacement
- Displaced isolated medial malleolar fracture
- Displaced isolated lateral malleolar fracture
- Bimalleolar fracture and bimalleolar equivalent fracture
- Posterior malleolar fracture with > 25% involvment
- Bosworth fracture-dislocations
- Open fractures
8.