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Myxopapillary Ependymoma
Joseph Junewick, MD FACR
over 10 years ago
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Posterior Talo-calcaneal Facet Coalition

Case Detail

Anatomy: Musculoskeletal
Joseph Junewick, MD FACR
Diagnostic Category: Developmental or Congenital
Created: over 10 years ago
Updated: over 10 years ago
Tags: PEDS
Modality/Study Types: CT
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Teenager with chronic foot pain.

Case Images


Posterior Talo-calcaneal Facet Coalition


CT – Sagittal and coronal reformats show sclerosis and irregularity of the posterior facet.


Posterior talocalcaneal facet coalition is rare, much less common than middle facet and calcaneonavicular coalition, although this could be a reporting bias. Symptoms include pain, frequent ankle sprains, predisposition to stress fractures, rigid flatfoot. The humpback sign is related to osseous protuberance of the posterior superior margin of the calcaneus.


Staser J, et al. Radiographic diagnosis of posterior facet talocalcaneal coalition. Pediatric Radiol (2007); 37:79-81.

Moe DC, et al. Posterior subtalar facet coalition with calcaneal stress fracture. AJR (2006); 186:259-264.

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