TERMS

Question 1

disorders of anabolic and catabolic balance which manifest over bone disease

Answer 1

metabolic bone disease

Question 2

can be seen on radiograph only when disease is heading toward advanced stage (can be classified by different patterns observed?

Answer 2

mineralization defects

Question 3

classification by pattern is most useful radiographically

Answer 3

pattern of involvement

Question 4

allows for accurate, reproducible, quantitative clinical assessment of bone mineral density (BMD)

Answer 4

bone densitometry

Question 5

end plate notch-like defects (residual of corta dorsalis, retraction from embryonic stages)

Answer 5

schmorls nodes

Question 6

band like osteopenic changes at ends of long bones involving cancellous/trabecular bone

Answer 6

regional migratory osteoporosis

Question 7

cancellous bone has turned osteopenic at both ends; bands usually spare subarticular areas so this demonstrates diffuse periarticular pattern

Answer 7

homogenous periarticular osteoporosis

Question 8

some of talus revascularized while other part undergoing avascular necrosis; band like osteopenic changes seen weeks later in distal tibia

Answer 8

talar neck fracture

Question 9

radiographic manifestations of disuse osteoporosis on ankle studies involving talar dome

Answer 9

hawkins sign

Question 10

part of bones undergoing avascular necrosis while the other part is revascularized

Answer 10

partial hawkin’s sign

Question 11

sclerotic lines through diaphysis of osteoporotic bone, usually perpendicular to trabecular pattern; may be body trying to reinforce bone in some way resulting in horizontal struts of bone

Answer 11

reinforcement lines