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O’Brien / Metaizeau — Paediatric Radial Neck Fractures

O’Brien Angulation: I (60°). Displacement/translation also matters; >3 mm or severe angulation predicts need for reduction/fixation. Metaizeau (elastic stable intramedullary nailing) classification is treatment-oriented with percutaneous leverage, intramedullary nail reduction, or open reduction for severely displaced injuries.

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O’Brien Angulation: I (<30°), II (30–60°), III (>60°). Displacement/translation also matters; >3 mm or severe angulation predicts need for reduction/fixation. Metaizeau (elastic stable intramedullary nailing) classification is treatment-oriented with percutaneous leverage, intramedullary nail reduction, or open reduction for severely displaced injuries.
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Question 1

What is the primary determinant of treatment for paediatric radial neck fractures?

Question 2

In the O'Brien classification, what angulation is classified as Grade III?

Question 3

Which of the following angulations in children older than 10 years typically indicates the need for surgical intervention?

Question 4

What is the recommended initial treatment for a Grade II radial neck fracture according to the O'Brien classification?

Question 5

What surgical technique is introduced in the Metaizeau classification for managing displaced radial neck fractures?

Question 6

What does the term 'translational displacement' refer to in the context of radial neck fractures?

Question 7

In the Metaizeau classification, what treatment is indicated for Grade II fractures with 3–5 mm displacement?

Question 8

What is the expected prognosis for a child with a Grade I radial neck fracture treated non-operatively?

Question 9

What complication is associated with radial neck fractures in children?

Question 10

What is the usual mechanism of injury for radial neck fractures in children?