ortho

Question 1

complication of knee dislocation

Answer 1

posterior knee dislocation caused usually by axial loading to the flexed knee like in an MVC leads to a popliteal artery injury in 50% of cases (anterior dislocation as well 39%)

Question 2

what nerve is injured in knee dislocations?

Answer 2

common perineal (sensory innervation of dorsal foot and dorsiflexion of the foot)

Question 3

How does the leg look with posterior hip dislocation

Answer 3

shortened, adducted, internally rotated

Question 4

What nerve is injured in posterior hip dislocations and what function?

Answer 4

sciatic nerve, ankle dorsiflexion and posterior calf sensation