Exam 2 Lecture 1 Lis Franc Injuries Dr. Dayton

Question 1

When approaching Lis Franc injuries what is the most important factor during recon?

Answer 1

Stability is farm more important than movement.

you want the joint fused for stability.

Question 2

What is the most stable option for repair of Lis Franc injuries?

Answer 2

Arthrodesis

Question 3

Should you be concerned about joint preservation in Lis franc injuries?

Answer 3

NO

Question 4

What is the imaging modality of choice for Lis Franc Injuries

Answer 4

X-Ray

CT and MRI are not useful in the diagnoses or treatment.

Question 5

Which two metatarsals lack a transverse metatarsal ligament?

Answer 5

the first and the second do not have a metatarsal connection.

Question 6

What type of mechanism of injury accounts for 2/3 of all Lis Franc’s injuries?

Answer 6

Motor Vehicle Accidents.

Question 7

What type of force most commonly causes Lis franc injuries?

Answer 7

Indirect Force

results from axial loading or twsting.

The metatasal bases generally dislocated dorsally here more often than plantar.

Question 8

Which direction do the metatarsal bases dislocate in an indirect force trauma?

Answer 8

Dorsally.