Paediatric orthopaedics: Langenskiold classification: practice question

A Orthopaedics question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

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Orthopaedics · Paediatric orthopaedics: Langenskiold classification

Sample item

A 3-year-old bow-legged child who walked early has a unilateral tibia vara with a medial metaphyseal beak on radiographs. Which classification stages infantile Blount disease?

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

D. Langenskiold

Langenskiold described six radiographic stages of infantile tibia vara, from irregular ossification and a metaphyseal beak to a physeal bar at the medial tibial plateau. Early realignment, usually before the age of 4, gives the best results because the changes in the early stages are reversible. Bracing may be tried in early stage disease.

Option by option

  • A. Pauwels

    Pauwels classifies femoral neck fractures by the angle of the fracture line.

  • B. Herring

    Herring classification grades the lateral pillar in Perthes disease.

  • C. Salter-Harris

    Salter-Harris classifies physeal fractures.

  • D. Langenskiold (correct)

    Correct. Langenskiold stages infantile Blount disease.

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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Questions about this Orthopaedics question

What is the answer to this Orthopaedics question?

The best answer is D, Langenskiold. Langenskiold described six radiographic stages of infantile tibia vara, from irregular ossification and a metaphyseal beak to a physeal bar at the medial tibial plateau.

Why is "Pauwels" not the answer?

Pauwels classifies femoral neck fractures by the angle of the fracture line.

Why is "Herring" not the answer?

Herring classification grades the lateral pillar in Perthes disease.

Why is "Salter-Harris" not the answer?

Salter-Harris classifies physeal fractures.

What concept does this question test?

It tests Paediatric orthopaedics: Langenskiold classification in Orthopaedics. Early realignment, usually before the age of 4, gives the best results because the changes in the early stages are reversible. Bracing may be tried in early stage disease.

How hard is this question?

We tag it as a multi-step question: it asks you to combine more than one idea. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Paediatric orthopaedics: Langenskiold classification?

Pair each fracture with its classic complication and nerve injured. Then use the flashcards and the other Orthopaedics questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.