The Knee

Question 1

2 functions of the meniscus

Answer 1

Force transmission

Stability - deepens the tibial articular surface

Question 2

Composition

Answer 2

Fibroelastic cartilage

Question 3

Which meniscus is c-shaped and which more circular?

Answer 3

Medial - c shaped

Lateral - circular - covers a larger proportion of the articular surface

Question 4

Blood supply to the meniscus

Answer 4

Lateral and medial inferior geniculate arteries

Question 5

Attachments of the medial meniscus? Why is it more prone to damage than lateral meniscus?

Answer 5

Anteriorly and posteriorly to tibial surface. Anterior part is congruent with the ACL.

MCL/joint capsule at lateral border

More prone to damage as it has more attachments making it relatively immobile.

Question 6

Lateral meniscus attachment sites?

Answer 6

Not attached to the joint capsule!

Only attached posteriorly and anteriorly

Question 7

A # on which side of the tibial plateau is more likely to cause arthritis?

Answer 7

Medial - covers less of the joint surface

Question 8

Name the two meniscofemoral ligaments. Which side are they on?

Answer 8

Humphrey (Anterior horn)

Wrisberg (Posterior horn)

Lateral side