Knee Region

Question 1

Struck to elicit the knee jerk reflex

The reflex is blocked by damage to the femoral nerve or spinal cord segments L2-4

Answer 1

Patellar ligament

Question 2

From medial epicondyle of the femur to the tibial shaft

Abduction of the knee joint

Tearing causes abnormal passive abduction of extended leg

Answer 2

Medial (tibial) collateral ligament

Question 3

From lateral epicondyle of the femur to the head of fibula

Adduction of the knee joint

Tearing causes abnormal passive adduction of extended leg

Answer 3

Lateral (fibular) collateral ligament

Question 4

From anterior aspect of the tibia to the lateral condyle of femur

Prevents anterior movement of the tibia in reference to the femur

If torn –> abnormal passive anterior displacement of the tibia (anterior drawer sign)

Stretched by hyperextension injury at the knee joint

Answer 4

Anterior cruciate ligament

Question 5

From posterior aspect of tibia to medial condyle of the femur

Prevents posterior movement of the tibia

If torn –> abnormal passive posterior displacement of the tibia (posterior drawer sign)

Stretched by hyperextension injury at the knee joint

Answer 5

Posterior cruciate ligament

Question 6

C-shaped fibrocartilage attached to the medial collateral ligament

Easily torn because not very mobile

Answer 6

Medial meniscus

Question 7

O-shaped fibrocartilage

Answer 7

Lateral meniscus

Question 8

Related to the popliteal fossa which contains the tibial nerve, common peroneal nerve, popliteal artery & vein, & small saphenous vein

Answer 8

Knee region

Question 9

Violent blow on the lateral side of the knee (football clipping) –> causes abduction & lateral leading to tearing of the ff:

• anterior cruciate ligament
• medial collateral ligament (excessive abduction of knee joint)
• medial meniscus

Answer 9

Terrible triad of Donoghue

Question 10

Articulation of medial & lateral condyles of femur with the medial & lateral condyles of the tibia

Answer 10

Knee (femorotibial) joint