Quiz 5: 1

Question 1

What can exacerbate MPFL deficiency in a pt with an unstable patella?

Answer 1

Patella alta

Question 2

What is another name for patella alta?

Answer 2

Grasshopper eyes

Question 3

What is the term used for a low riding patella?

Answer 3

Patella baja

Question 4

What is another name for patella baja?

Answer 4

Patella infera

Question 5

Draw both patella alta and baja

Answer 5

You know this already

Question 6

What structures are being tested during the PF glide testing?

Answer 6

Superior retinaculum

Question 7

Positive finding of PF glide testing

Answer 7

More than 2 quadrants

Question 8

What structures are you testing with the PF tilt?

Answer 8

Deep retinaculum

Question 9

Positive finding for PF tilt testing

Answer 9

More than 15˚

Question 10

What are the 3 common imaging view that capture the patella in the trochlea

Answer 10

• Sunrise view
• Merchant’s view
• Hughston view

Question 11

What provides the bony buttress for the patella?

Answer 11

Lateral trochlea being higher than medial trochlea

Question 12

Where is the thickest articular cartilage in the human body?

Answer 12

Articular cartilage on underside of the patella

Question 13

Draw and name the most common radiographic way to look at the position of the patella in the trochla/way to measure the trochlear groove

Answer 13

TTTG view draw me

Question 14

What is the Insall-Salvati ratio?

Answer 14

B/A = 1

Question 15

What do the components of the formula stand for?

Answer 15

A = length of patellar tendon
B = height of patella

Question 16

Draw the Insall-Salvati ratio

Answer 16

Draw this shit

Question 17

What is the ratio for patella alta?

Answer 17

Less than 1

Question 18

What is the ratio for patella baja?

Answer 18

Greater than 1

Question 19

What is the fx of on the superior-lateral aspect of the patella called?

Answer 19

Bipartite patella

Question 20

What is the Q angle?

Answer 20

Angle between:

• ASIS
• midpoint of patella
• tibial tuberosity

Question 21

How does an increased Q angle affect the patella

Answer 21

Increases valgus forces on the knee (?)

Question 22

Pts with patella alta tend to have problems with (hypo/hyper)mobility

Answer 22

Hypermobility

Question 23

Which causes osteochondral changes early on? Patella alta or patella baja?

Answer 23

Patella baja