Knee Joint Flashcards Preview

Anatomy > Knee Joint > Flashcards

Flashcards in Knee Joint Deck (19):
1

Which three bones are involved in the knee joint?

Femur, tibia and patella

2

What are the three articulations of the knee joint called?

Medial femerotibial, lateral femerotibial and femeropatellar

3

What movements are possible at the knee?

Flexion/extension
Slight lateral/medial rotation when knee is flexed

4

How does the knee 'lock'?

As knee approaches full extension femur medially rotates - stable position

5

What are the menisci?

C-shaped wedges of fibrocartilage

6

What are the functions of the menisci?

Deepen tibial plateau - increase congruity of joint
Distribute weight evenly
Shock absorption
Assist in knee locking

7

Which menisci attaches to which ligament of the knee?

Medial meniscus attaches to tibial/medial collateral ligament

8

What are the intra-articular ligaments of the knee called?

Anterior and posterior cruciate ligaments

9

What are the attachments of the posterior cruciate ligament?

Posterior intercondylar region of tibia to medial femoral condyle

10

What are the functions of the posterior cruciate ligament?

Prevents posterior displacement of tibia and hyperflexion

11

What are the attachments of the anterior cruciate ligament?

Anterior intercondylar region of tibia to lateral femoral condyle

12

What are the functions of the anterior cruciate ligament?

Prevents anterior displacement of tibia and hyperextension

13

Which cruciate ligament is weaker?

Anterior cruciate ligament

14

What are the extra-articular ligaments of the knee called?

Tibial/medial and fibular/lateral collateral ligaments

15

What is the function of the tibial collateral ligament?

Prevents abduction of knee and rotation of the knee during extension

16

What is the function of the fibular collateral ligament?

Prevents adduction of knee and rotation of the knee during extension

17

What bursae are there around the knee joint?

Prepatellar, suprapatellar, deep infrapatellar and superficial infrapatellar

18

What is genu varum?

Bow legged - decreased Q angle
Tibia is adducted with respect to femur

19

What is genu valgum?

Knock kneed - increased Q angle
Tibia is abducted with respect to femur