The Knee: Function and Injuries Flashcards Preview

Medicine, Year 2, Block 12 (Neurological, Neuromuscular, and MSK Diseases) > The Knee: Function and Injuries > Flashcards

Flashcards in The Knee: Function and Injuries Deck (26):
1

What kind of bone is the patella?

Sesamoid

2

The medial collateral ligament resists ....... forces?

Valgus forces

3

The lateral collateral ligament resists .......... forces?

Varus forces

4

The medial collateral ligament attaches to which meniscus?

Medial meniscus

5

The lateral collateral ligament attaches to which meniscus?

It is not connected to the lateral meniscus

6

How can you test for medial collateral ligament function?

MCL test - push knee towards midline

7

How can you test for lateral collateral ligament function?

LCL test - pull knee away from midline

8

The Anterior Cruciate Ligament prevents femur displacement in which direction?

Posterior femur displacement

9

The Posterior Cruciate Ligament prevents femur displacement in which direction?

Anterior femur displacement

10

Why is a hand placed on Hamstrings during a Lachman's test?

Can feel whether or not hamstrings are tense - can compensate the broken ACL

11

Which is more common, anterior or posterior cruciate ligament tear?

Anterior cruciate ligament

12

What are the shapes of the Medial and Lateral Menisci?

Medial = C shaped
Lateral = O shaped

13

Are the cruciate ligaments intra capsular or extra capsular? Are they intra synovial or extra synovial?

Intra capsular, extra synovial

14

What is the function of the Popliteus muscle with respect to the knee?

Unlocking the knees when walking, by laterally rotating the femur on the tibia when foot is in contact with ground

15

What is the innervation of the Popliteus muscle?

Tibial nerve

16

Where do the muscles of the Quadriceps Femoris insert onto?

All insert onto the tibial tuberosity

17

What is the innervation of the Quadriceps Femoris group?

Femoral nerve

18

What is the Iliotibial band? What is it supported by?

Thickening of the Fascia Lata, supported by the Gluteus maximus and Tensor Fascia Lata

19

What is a normal Q angle for men and women?

Men: 14 degrees
Women: 17 degrees

20

What is the Q angle?

Angle representing force of Quadriceps femoris, between ASIS and mid-patella

21

What are the three hamstring muscles?

Semi-tendinosus
Semi-membranosus
Biceps femoris

22

What is the innervation of the Hamstring muscles?

Sciatic nerve

23

The Pes Anserinus is a conjoined set of which 3 tendons?

Sartorius
Gracilis
Semitendinosus

24

Does the Pes Anserinus sit anterior or posterior to the MCL?

Anterior / more superficial to MCL

25

What are the borders of the Popliteal fossa?

Semimembranosus
Biceps femoris
Gastrocnemius

26

Medial to lateral, what are the contents of the Popliteal fossa?

Popliteal artery
Popliteal vein
Tibial nerve
Common fibular nerve