Paediatric: pes cavus: 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: pes cavus

Sample item

An adolescent has high-arched feet, clawing of toes, frequent ankle sprains and distal wasting of the legs with a positive family history. Which disorder should be suspected?

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

The answer and the reasoning

B. Charcot-Marie-Tooth disease

Pes cavus with a cavovarus hindfoot often indicates an underlying hereditary motor and sensory neuropathy such as Charcot-Marie-Tooth disease, with distal weakness and the inverted champagne bottle legs. Neurological evaluation is mandatory in unilateral or progressive cases.

Option by option

  • A. Flexible flat foot

    Flexible flat foot has a low arch.

  • B. Charcot-Marie-Tooth disease (correct)

    Correct. Cavus feet with distal wasting suggest CMT.

  • C. Duchenne muscular dystrophy

    DMD presents with proximal weakness and calf hypertrophy.

  • D. Clubfoot

    Clubfoot is present from birth with stiff equinovarus feet.

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 B, Charcot-Marie-Tooth disease. Pes cavus with a cavovarus hindfoot often indicates an underlying hereditary motor and sensory neuropathy such as Charcot-Marie-Tooth disease, with distal weakness and the inverted champagne bottle legs.

Why is "Flexible flat foot" not the answer?

Flexible flat foot has a low arch.

Why is "Duchenne muscular dystrophy" not the answer?

DMD presents with proximal weakness and calf hypertrophy.

Why is "Clubfoot" not the answer?

Clubfoot is present from birth with stiff equinovarus feet.

What concept does this question test?

It tests Paediatric: pes cavus in Orthopaedics. Neurological evaluation is mandatory in unilateral or progressive cases.

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: pes cavus?

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.