C/S Patho Pt 2 (14)

Question 1

What is a Jefferson’s fx

Answer 1

burst fx of C1 under axial load

Question 2

MOI of Jefferson’s fx

Answer 2

compression with flex or ext

Question 3

What is Hangman’s fx

Answer 3

bilateral fx of pars interarticularis at C2

Question 4

MOI for Hangman’s fx

Answer 4

distraction w/ hyperext or forceful hyperext centered on chin (contact sports, diving, falling)

Question 5

Type 1 dens fx

Answer 5

-avulsion fx
-stable
-tip of dens broken off

Question 6

Type 2 dens fx

Answer 6

-fx base of dens
-unstable

Question 7

Type 3 dens fx

Answer 7

-fx through body of C2
-unstable
-may involve facets C1 and 2

Question 8

what motion does orthoses control the most

Answer 8

flexion, better than ext