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Orthopaedic

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Metabolic Bone Diseases

Question
17 out of 42
 

All the following are radiological features of rickets except (AIIMS May 2010)



A Delayed appearance of the epiphysis

B Widening of the epiphyseal plate

C Calcification of the sacra iliac ligament

D Flaring of the metaphyseal cortices outward (trumpeting)

Ans. C

Calcification of the sacra iliac ligament

a. Normal width of the epiphyseal plate is 2-4 mm. In rickets it is increased because of excessive accumulation of uncalcified osteoid at the growth plate.

b. Normally the metaphysis meets the epiphyseal plate as a smooth line of sclerosis = (zone of provisional calcification). In rachitic bones this line is absent and the metaphyseal end appears irregular.

c. The cartilage cells that accumulate at the growth plate create a depression in the soft metaphyseal end giving rise to a cup shaped appearance.

Metabolic Bone Diseases Flashcard List

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