osteochondrosis

Question 1

which areas are most susceptible to osteochondroses

Answer 1

the epiphyses

(they are entirely covered by articular cartilage and therefore poorly vascularized)

Question 2

A disorder of one or more ossification sites, with localized subchondral necrosis followed by recalcification

Answer 2

Osteochondritis Dissecans (OCD or OD)

Question 3

cause of Osteochondritis Dissecans

Answer 3

repetitive microtrauma resulting in ischemia + disruption of subchondral growth

Question 4

Osteochondritis Dissecans symptoms

Answer 4

actively-related pain, swelling, and giving way

Question 5

wilson sign (what is it and for which disease)

Answer 5

for Osteochondritis Dissecans

pain increased with passive knee extension and tibial internal rotation
relieved with tibial external rotation

Question 6

death of bone and bone marrow cellular components

Answer 6

Osteonecrosis

Question 7

Osteonecrosis is caused by

Answer 7

a loss of blood supply in the absence of infection
(most common in femoral head)

Question 8

legg-calve-perthes disease

Answer 8

childhood hip disorder caused by epiphyseal aseptic necrosis of the proximal end of the femur

Question 9

osgood schlatter disease

Answer 9

fibers of the patellar tendon pulling small bits of immature bone from the tibial tuberosity

Question 10

what age group and gender is most affected by osgood-schlatter disease

Answer 10

active adolescent boys 10-15 years old

Question 11

what is the main cause of osgood-schlatter disease

Answer 11

indirect trauma/repetitive stress before complete fusion of the epiphysis to the main bone has occured

Question 12

what disease are children with genu valgum and/or flatfooted susceptible to?

Answer 12

osgood-schlatter disease