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Tri 6 - MSK 2 > Knee > Flashcards

Flashcards in Knee Deck (18)
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1

Most frequently occurs as the result of a sudden directional change while running, but may also be due to trauma.

Patellar Dislocation

2

Increased “Q-Angle” for any reason is a predisposing factor

Patellar Dislocation

3

Due to the more anterior projection and deeper slope of the lateral femoral condyle the patella almost always dislocates _____

laterally

4

Lateral dislocation is counterbalanced by the ______. Therefore, if this muscle is weak the patella may shift laterally and dislocate.

vastus medialis muscle

5

Patella may relocate upon

full knee extension

6

A positive ______ test and a positive _______ sign are indicative of dislocations.

apprehension
Fouchet’s

7

A positive patellar ______ test and a positive ______ sign also indicate dislocation.

ballottement
Perkin’s

8

______ need to be taken to rule out an osteochondral fracture which occur approximately 50% of the time in a patellar dislocation

Plain films

9

x-ray: Best seen on a _____ view

tangential

10

MRI: Used to view ______

ligamentous integrity

11

tx: Allow ____ weeks of immobilization with the knee in extension along with lateral compression

3-6

12

tx by surgery: ______ surgery may be done to release excess pressure from the lateral ligaments and may allow the patella to resume its normal position

Lateral release

13

Painful, abnormal tracking of patella with patellar surface of femur
Repetitive microtrauma
Weak quads, tight ITB and hamstrings

PF SYNDROME

14

This condition often occurs in patients who lack a supportive medial arch
Foot pronation causes a compensatory internal rotation of the tibia or femur (femoral anteversion) that upsets the patellofemoral mechanism

Pes Planus (Pronation)

15

Condition w/ a high-arched foot provides less cushioning for the leg when it strikes the ground.
This places more stress on the patellofemoral mechanism, particularly when a person is running.

Pes Cavus (High-Arched, Supination)

16

Tight ______ place more posterior force on the knee, causing pressure between the patella and femur to increase

hamstrings

17

Tight ____ muscles can lead to compensatory foot pronation and, like tight hamstrings, can increase the posterior force on the knee.

calf

18

Discomfort upon rising after sitting for a prolonged period

Cinema Sign