TERMS II

Question 1

what is this epiphysis?

can be normal in Central America or Japan or a pathologic maker

Answer 1

conical epiphysis

Question 2

what is this epiphysis?

common clefts seen in great toe

can be accessory pseudoepiphysis w/o longitudinal growth

product of multiple ossification centers

Answer 2

bifed epiphysis

Question 3

irregularity of medial or lateral border

Answer 3

cleft epiphysis

Question 4

oblique cortical defect primarily in proximal phalanx of hallux

seen on MO
rule out fx or lytic lesion

Answer 4

nutrient foramina

Question 5

bones appear early, or boy bones appear at same time as girls

general cause: maternal hyperthyroidism, obesity, hypergonadism

local cause: RA, salter Harris injury, AV fistula

Answer 5

accelerated maturation

Question 6

bones appear late

dwarfism and cretinism, juvenile diabetes

local causes: infections, TB

Answer 6

retarded maturation

Question 7

idiopathic osteochondrosis of the femoral head

Answer 7

legg calve perthes disease

Question 8

delayed, irregular ossification of femoral head epiphysis

Answer 8

Meyer epiphyseal dysplasia

Question 9

avulsion injury of anterior tibial tubercle not an osteochondrosis

fragmentation of tubercle
st swelling
long term residual enlargement

Answer 9

osgood-schlatters disease

Question 10

osteochondrosis deformans tibiae progressive proximal tibial bowing

infantile tibia vara
adolescent tibia vara

Answer 10

blounts disease

Question 11

osteochondrosis of the navicular (aka silver dollar navicular)

Answer 11

kohlers disease

Question 12

developmental dysplasia that improves over 2-3 yrs

looks like kohlers but not progressive and radiographs improve

no symptoms, no need to follow up

Answer 12

karp navicular dysplasia

Question 13

osteochondrosis of cuneiform

Answer 13

bushkes disease

Question 14

osteochondrosis of the lesser metatarsal, infraction noted

Answer 14

freibergs disease

Question 15

osteochondrosis of the 5th met base

Answer 15

iselins disease

Question 16

osteochondrosis of hallucal sesamoids

Answer 16

treves disease

Question 17

osteochondrosis of the phalanges

Answer 17

theimann disease

Question 18

absent ossification center, common

symphalangism present

Answer 18

absent phalangeal physis

Question 19

what is this epiphyseal disturbance

common causes: normal or pathologic
normal variation
trauma, infection, achondroplasia

uncommon causes: infarction, sickle cell

rare causes: trichorhinphalangeus

Answer 19

conical epiphysis

Question 20

what is this epiphyseal disturbance

result of growth disturbances

legg calve perthes as most common cause

aseptic necrosis as a common cause, hypothyroidism as an uncommon cause, rare cause morquio, trichorhinophalangeus

Answer 20

fragmented epiphysis