Test 2.1

Question 1

Which structures does the patellofemoral joint articulate

Answer 1

Patella with the femur

Question 2

Which motions do the femoral condyles execute

Answer 2

Rolling and gliding

Question 3

When does the rolling movement occur at the knee

Answer 3

The initiation of flexion

Question 4

When does the sliding movement occur at the knee

Answer 4

Occurs at the end of flexion

Question 5

What is the screw home mechanism

Answer 5

It is when the knee moves towards terminal extension, the tibia ER about 20 degrees on the fixed femur

Question 6

What is the ROM for the knee for flexion and extension

Answer 6

Flexion = 135

Extension = -10

Question 7

What is arthrology

Answer 7

When the knee supports the weight of the body and transmits forces from the ground up

Question 8

True or false

Joint capsule surrounds the entire articulation

Answer 8

True but it doesn’t in the anterior portion

Question 9

What is the surface of the tibia covered by

Answer 9

Fibrocartilaginous menisci

Question 10

True or false

The lateral menisci is attached to the LCL

Answer 10

False

Question 11

Which menisci is tighter the lateral or medial

Answer 11

Lateral

Question 12

The tendons of the semimembranosis sends fibers to what?

Answer 12

Posterior edge of medial menisci

Question 13

Where does the popliteus muscle send fibers?

Answer 13

To lateral menisci

Question 14

Where does the meniscofemoral ligament extend to

Answer 14

From the lateral meniscus (post) to the inside of the medial condyle near the PCL

Question 15

What are coronary ligaments

Answer 15

Meniscotibial

Question 16

Are MCL and LCL collateral ligaments or cruciate ligaments

Answer 16

Collateral ligaments

Question 17

What’s the characteristic of the MCL

Answer 17

Flat band, attaches above medial condyle of femur and below to medial surface of tibia

Question 18

What’s the characteristic of the LCL

Answer 18

Cordlike, attached above lateral condyle of femur and below the head of fibula

Question 19

Which force does the MCL and LCL resist

Answer 19

MCL resist valgus force

LCL resist varus force

Question 20

Is the ACL intra-articular or extra-articular and what is it bathed in

Answer 20

Intra-articular and bathed in synovium

Question 21

What are the threes bundles of fibers that are within the ACL

Answer 21

Anteromedial, intermediate and posterolateral

Question 22

What are the two bundle of fibers that are within the PCL

Answer 22

Anteromedial and posterolateral

Question 23

What are supporting posterolateral ligaments

Answer 23

Oblique popliteal

Arcuate popliteal

Arcuate complex

Question 24

What does the arcuate complex consist of

Answer 24

Arcuate ligament

Posterior lateral capsule and portion of the PCL

LCL

Fabellofibular

Question 25

Where does the arcuate popliteal run

Answer 25

From head of fibula, over the popliteus muscle to attach into the posterior joint capsule

Question 26

Where does the oblique popliteal run

Answer 26

From semimembranosis on posterior aspect of capsule, then from that tendon to the medial aspect of the lateral femoral condyle (post)

Question 27

Where is the thickest articulat cartilage in the body

Answer 27

Posterior surface of patella

Question 28

Which muscle group stabilizes the patella

Answer 28

Quads

Question 29

What anchors the patella distally

Answer 29

Patellar tendon

Question 30

Does vastus lateralis and IT band assist with lateral or medial stabilization

Answer 30

Lateral

Question 31

From full flexion to extension how much does the patella slide

Answer 31

7-8 cm

Question 32

At what point of flexion does the odd facet on into contact?

Answer 32

135 degrees of flexion

Question 33

How is the Q-angle measured

Answer 33

From ASIS to mid patella and then another line from the mid patella to tibial tuberosity

Question 34

What's the normal Q-angle range for males and females

Answer 34

Males - 10-14 degrees Females- 15-17 degrees

Question 35

What does q-angle represent

Answer 35

Valgus stress on the knee

Question 36

What does a very small q-angel result in and what does a larger q-angle result in

Answer 36

Very small= genu varum Greater than 17 degrees results in genu valgum

Question 37

What structures does the Tibiofemoral joint articulate

Answer 37

The femur with the tibia