General Questions/Notes

Question 1

What is the screw-home locking mechanism of the knee? Describe femur and tibia movements.

Answer 1

Lock (extension or passive lazy standing) - F (IN ROT)/ T (EX ROT)

Unlock (flexion) - F (EX ROT)/ T (IN ROT)

Question 2

Patella increases the moment arm of which muscles?

Answer 2

Quads

Question 3

Differentiate valgus and varus knees.

Answer 3

valgus - val-gum - knock knees

varus - bow legged

Question 4

ACL and PCL - which one is “stronger” or less likely to be injured?

Answer 4

PCL