Cartilage Injuries and Arthritis

Question 1

give an example of an atraumatic cartilage defect

Answer 1

osteocondritis dessecans
osteoarthritis
inflammatory arthritis

Question 2

what is the name of the structure that healing cartilage becomes

Answer 2

fibrocartilage

Question 3

most common site for osteochondritis dissecans (OD)?

Answer 3

lateral femoral condyle

Question 4

what condition is osteochondritis dissecans similar to?

Answer 4

avascular necrosis

Question 5

what happens in OD?

Answer 5

area of knee surface loses blood supply -> cartilage/bone can fragment off

Question 6

what age is OD most common in?

Answer 6

teens

Question 7

treatment for OD?

Answer 7

can resolve on its own
if detaching -> MRI can pin in place
detached -> fix or remove

Question 8

is fibrocartilage more or less wear resistant than cartilage?

Answer 8

less

Question 9

methods of cartilage regeneration?

Answer 9

drilling
osteochondral allograft/autograft
mosaicplasty

Question 10

problem with mosaicplasty?

Answer 10

implants can fall out

Question 11

what cartilage regeneration technique should be used for larger bone defects?

Answer 11

osteochondral allograft

Question 12

main predispositions of OA

Answer 12

injury
malalignment
degenerate meniscal tear
infection
genetics

Question 13

which OA patients are suitable for an osteotomy?

Answer 13

heavy manual workers

varus knee problems

Question 14

who should get a knee replacement?

Answer 14

older patients with end stage arthritis