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Orthopaedics · Paediatric orthopaedics: atypical age in SCFE
Sample itemA 9-year-old thin boy presents with slipped capital femoral epiphysis. What further assessment is recommended?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
A. Screening for endocrine and metabolic disorders such as hypothyroidism
Typical SCFE occurs in obese adolescents around the pubertal growth spurt. A slip below about 10 years of age, in a thin child, or beyond mid-teens suggests an endocrine or metabolic cause such as hypothyroidism, growth hormone abnormalities or renal osteodystrophy. These need identification and correction.
Option by option
A. Screening for endocrine and metabolic disorders such as hypothyroidism (correct)
Correct. Atypical age and build call for endocrine and metabolic screening.
B. No further assessment as the slip is idiopathic
Idiopathic slips occur in the typical adolescent population.
C. Genetic testing for achondroplasia only
Achondroplasia is not the usual cause of a slip.
D. Bone scan for malignancy
A bone scan is not the indicated test.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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