Knee Region Flashcards Preview

624: Acute Care Therapeutic Exercises > Knee Region > Flashcards

Flashcards in Knee Region Deck (17):
2

What type of joint is the tibiofemoral joint?

Biaxial, modified hinge joint

3

Which aspects of the tibiofemoral joint are concave and which are convex?

The distal end of the femur is convex whereas the proximal end of the tibia is concave

4

What occurs during the final degrees of knee extension?

Rotation between the femoral condyles and the tibia called crew-home or locking mechanism

5

When the knee is flexed, what direction does the patella slide?

caudally

6

When the knee is extended, what direction does the patella slide?

superiorly

7

What is the primary function of the patella?

To increase the movement arm of the quadriceps muscle in its function to extend the knee

8

What is the Q-angle in men and women?

Men: 10 degrees
Women: 15 degrees

9

4 Causes of patellar malaignment and tracking problems

1) Increased Q-angle
2) Tight IT band and TFL (forces patella laterally)
3) Weak VMO
4) Weak hip abductors or ER

10

What is the Q-line in reference to the patella?

The angle formed by the intersection of a line drawn from the center of the patella to the ASIS and a line drawn from the center of the patella to tibial tubercle

11

During gait the knee is controlled by what 4 muscles?

- Quadriceps
- Hamstrings
- Soleus
- Gastrocnemius

12

4 common sources of referred pain to the knee

1) Common peroneal nerve (L2-4)
2) Saphenous nerve (L2-4)
3) L3 refers to anterior aspect
4) S1-S2 refers to posterior aspect

13

The knee goes through __ degrees of movement during gait

60

14

How do ACL injuries occur?

A blow to the lateral side of the knee resulting in a valgus force.Can also be noncontact

15

How do PCL injuries occur?

A forceful blow to the anterior tibia while the kne is flexed

16

How MCL injuries occur?

From a valgus force across the medial joint line of the knee

17

How do LCL injuries occur?

Traumatic varus force across the knee (uncommon)

18

Which 2 ligaments typically tear together?

ACL and MCL