Paediatric: Kohler disease: 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: Kohler disease

Sample item

A 5-year-old boy limps with pain over the medial midfoot, and radiographs show a sclerotic, flattened tarsal navicular. What is the diagnosis?

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

The answer and the reasoning

C. Kohler disease

Kohler disease is osteochondrosis of the tarsal navicular, seen mostly in boys aged 3 to 7 years. It is self-limiting, and treatment is a walking cast or supportive footwear.

Option by option

  • A. Perthes disease

    Perthes disease affects the femoral head.

  • B. Kienbock disease

    Kienbock disease affects the lunate.

  • C. Kohler disease (correct)

    Correct. Navicular osteochondrosis is Kohler disease.

  • D. Freiberg disease

    Freiberg disease affects the second metatarsal head.

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.

More Orthopaedics questions

Questions about this Orthopaedics question

What is the answer to this Orthopaedics question?

The best answer is C, Kohler disease. Kohler disease is osteochondrosis of the tarsal navicular, seen mostly in boys aged 3 to 7 years.

Why is "Perthes disease" not the answer?

Perthes disease affects the femoral head.

Why is "Kienbock disease" not the answer?

Kienbock disease affects the lunate.

Why is "Freiberg disease" not the answer?

Freiberg disease affects the second metatarsal head.

What concept does this question test?

It tests Paediatric: Kohler disease in Orthopaedics. It is self-limiting, and treatment is a walking cast or supportive footwear.

How hard is this question?

We tag it as an application question: it asks you to use a fact on a patient or a finding. 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: Kohler disease?

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.