A Case of Coalition

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Dear OCADers,
I would really appreciate help on this case of a 24 year old male who presented with foot pain and rigidity. The pain has been on and off since childhood, but had recently increased when he took up a mechanical job at a factory and also started working out.

I can see a calcaneonavicular coalition, but what confuses me is: What accounts for all of this extra bone formation? Is there a co-exisiting talocalcaneal coalition? Is the bone just remodelling with ligamentous ossification?

Thank you in advance!
Dr. Mai Ebrahim Mattar

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1 thought on “A Case of Coalition”

  1. OCAD
    OCAD

    Thank you to all whom have replied.
    The responses are:
    1. Trevor disease x 2 (I will try to get radiographs of the patient’s hips and knee).
    2. Coalition with ligamentous ossification.
    3. CN coalition with os Sustentaculi.
    4. CN coalition with Os Calcaneum.

    I am now convinced that it is Trevor disease.

    Thank you once again!

    Mai

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