Double contour sign (trochlear dysplasia)

The double contour sign is a helpful radiologic sign which is seen on true lateral plain radiographs of trochlear dysplasia.  A double line at the anterior aspect of condyles that seen if medial condyle is hypoplastic.

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Article information

rID: 22118
Section: Signs
Tags: stub, cases, refs
Synonyms or Alternate Spellings:
  • Double contour sign of trochlear dysplasia
  • Double contour sign (knee)
  • The double contour sign of trochlear dysplasia
  • The double contour sign (trochlear dysplasia)

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