Question 77 · LDEK · Cephalometry and radiological examination
A peak of the pubertal growth spurt according to Björk occurs if on the hand-wrist radiograph:
- A. epiphysis and diaphysis of the middle phalanx of the middle finger are equal in width.
- B. proximal phalanx of the second digit and its epiphysis are equal in width.
- C. fusion of the epiphysis and the diaphysis of the radius is seen.
- D. sides of the epiphysis of the middle phalanx of the 3rd finger caps its metaphysis.
- E. fusion between the epiphysis and the diaphysis of the middle phalanx of the middle finger takes place.
Hint
Björk's stages progress from equal widths, through capping, to fusion; the growth peak coincides with the middle step.
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