Talar beak sign

The talar beak sign is seen in cases of tarsal coalition, and refers to a superior projection of the distal aspect of the talus. It is most frequently encountered in talocalcaneal coalition 1-2. It is thought to result from abnormal biomechanic stresses at the talonavicular joint. 

Differential diagnosis

It needs to be distinguished from :

  • an osteophyte due to degenerative change at the talonavicular joint
  • the talar ridge found more proximally at the site of insertion of the ankle capsule1. The normal talar ridge is several millimeters high and has a straight or slightly convex, graded slope proximally, and a straight, sharp margin distally 2
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Article Information

rID: 10279
System: Musculoskeletal
Section: Signs
Tags: refs, stub
Synonyms or Alternate Spellings:
  • Talar beak
  • Talar-beak sign
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    Case 1: with a talocalcaneal coalition
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    Case 2: with a talocalcaneal coalition
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    Calcaneonavicular...
    Case 3: with a calcaneonavicular coalition
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    Case 4 : without talocalcaneal coalition
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    Case 5: with talocalcaneal coalition
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