Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
25 Cards in this Set
- Front
- Back
|
What two structures does the Lisfranc ligament connect?
|
Medial cuneiform
Second metatarsal |
|
|
Is the ligament stronger plantarly or dorsally?
|
Plantarly
|
|
|
What is a classic clinical sign of a potential Lisfranc injury?
|
Plantar ecchymoses
|
|
|
For what length of displacementis nonoperative treatment acceptable?
|
<2 mm
|
|
|
What does nonoperative treatment consist of?
|
NWB immobilization for 6 weeks
|
|
|
What are the two components of the classic pattern of screw fixation for a Lisfranc injury?
|
Retrograde screw from the first metatarsal into the medial cuneiform
Antegrade screw from medial cuneiform into the second metatarsal |
|
|
With larger displacements, contact area decreases; subluxation in
which direction is particularly problematic? |
Dorsolateral
|
|
|
Are outcomes generally better if the injury is ligamentous or bony?
|
Bony
|
|
|
In general, screws can be safely removed at what point?
|
5 months postoperatively
|
|
|
What percentage of Lisfranc injury patients develop posttraumatic arthrosis?
|
25%
|
|
|
What two structures does the Lisfranc ligament connect?
|
Medial cuneiform
Second metatarsal |
|
|
Is the ligament stronger plantarly or dorsally?
|
Plantarly
|
|
|
What is a classic clinical sign of a potential Lisfranc injury?
|
Plantar ecchymoses
|
|
|
For what length of displacementis nonoperative treatment acceptable?
|
<2 mm
|
|
|
What does nonoperative treatment consist of?
|
NWB immobilization for 6 weeks
|
|
|
What are the two components of the classic pattern of screw fixation for a Lisfranc injury?
|
Retrograde screw from the first metatarsal into the medial cuneiform
Antegrade screw from medial cuneiform into the second metatarsal |
|
|
With larger displacements, contact area decreases; subluxation in
which direction is particularly problematic? |
Dorsolateral
|
|
|
Are outcomes generally better if the injury is ligamentous or bony?
|
Bony
|
|
|
In general, screws can be safely removed at what point?
|
5 months postoperatively
|
|
|
What percentage of Lisfranc injury patients develop posttraumatic arthrosis?
|
25%
|
|
|
What is the treatment for posttraumatic arthrosis?
|
Lisfranc arthrodesis
|
|
|
What is the treatment for a chronic (missed acute) Lisfranc injury?
|
Lisfranc arthrodesis
|
|
|
How many compartments are there in the foot?
|
Nine
|
|
|
What are the five major compartments?
|
Medial
Lateral Central lnterosseous Calcaneal |
|
|
In what three areas should incisions be placed to release the compartments of the foot?
|
Longitudinal incision medially (to release abductor hallucis/deep compartment)
Between metatarsals 2 and 3 Between metatarsals 4 and 5 |
