Knee

Question 1

Which is the largest, most superficial joint?

Answer 1

The Knee!

Question 2

Stability of the knee is dependent on:

Answer 2

The strength and actions of the surrounding muscles and ligaments

Question 3

The 3 articulations of the knee are:

Answer 3

1) Lateral femerotibial joint
2) medial femerotibial joint
3) femoropatellar joint

Question 4

Which muscle’s tendon travels through the synovial joint capsule of the knee?

Answer 4

The Popliteus m.

Question 5

What structure connects the vastus medius m. to the suprapatellar bursa?

Answer 5

The Articularis genu m.

Question 6

Of the 12 bursae around the knee joint, which four communicate with the synovial cavity?

Answer 6

1) Suprapatellar
2) Popliteus
3) Anserine
4) Gastrocnemius

Question 7

Which are the 5 extracapsular ll.?

Answer 7

1) Patellar l.
2) Fibular collateral l.
3) Tibial collateral l.
4) Oblique popliteal l .
5) Arcuate popliteal l.

Question 8

When viewed from the posterior, the cruciate ligaments form a letter x. Which l. is which?

Answer 8

The ACL extends S, M->L and A->P

The PCL extends S, L->M and P->A

Question 9

Multiple true/false. The ACL:

1) Is stronger than the PCL
2) Extends superio-posterio-laterally.
3) Prevents anterior displacement of femur on tibia.
4) Prevents hyperflexion of the knee joint.

Answer 9

ACL

1) F. Weaker than PCL
2) T. “ACL-SPL”
3) F. posterior displacement of F on T
4) F. hyperextension

Question 10

Multiple True/False: The PCL:

1) Is stronger than the ACL
2) Extends superio-anterio-medially.
3) Prevents posterior displacement of F on T.
4) Prevents anterior displacement of T on F.
5) Stabilizes femur when weight is on flexed knee.

Answer 10

PCL

1) T. Stronger than ACL
2) T. “PCL-SAM”
3) F. Pd-FonT
4) F. Ad-TonF
5) T. “ACL-walking downhill”

Question 11

A blow to the lateral side of the knee may cause:

Answer 11

“Unhappy Triad”

1) Rupture of the TCL
2) Concomitant tearing of the medial meniscus
3) Tearing of the ACL

Question 12

Give the structures damaged and the clinical sign for the following injury:

• Semi-flexed knee
• hyperextension with force directed anteriorly

Answer 12

ACL Rupture

“Anterior Drawer Sign”

Question 13

Give the structures damaged and the clinical sign for the following injury:

• extended knee
• blow to lateral side

Answer 13

1) TCL
2) Medial Meniscus
3) ACL
“Unhappy Triad”

Question 14

Give the structures damaged and the clinical sign for the following injury:

• flexed knee
• excessive force directed posteriorly

Answer 14

1) PCL
2) may include FCL or TCL
“Posterior Drawer Sign”

Question 15

Give the structures damaged and the clinical sign for the following injury:

• flexed knee
• excessive lateral twisting

Answer 15

1) TCL
2) Medial Meniscus
3) ACL
“Unhappy Triad”