UMEM Educational Pearls

Category: Orthopedics

Title: Calcaneus Fractures

Keywords: Calcaneus Fracture, Bohler Angle (PubMed Search)

Posted: 6/13/2010 by Michael Bond, MD
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Calcaneus Fractures:

Calcaneus fractures can easily be missed on plain films and the true extent of the injury might not be appreciated until a CT is done.  However, you can increase your change of picking up a calcaneal fracture by evaluating Bohler's Angle. 

Lateral radiographs of the foot are needed to evaluate the Bohler angle.  This is the angle made by drawing a line from anterior process of the calcaneus to the peak of the posterior articular surface and a second one drawn  from the peak of the posterior articular surface to the peak of the posterior tuberosity. (See Picture) The average angle is 25-40°. Angles less than 25' are strongly suggestive of a fracture and the patient should probably get a CT of their foot if there is clinical suspicion.

Bohler's Angle


Photo and additional discussion can be found at and on eMedicine -- Calcaneus Fractures by Scott Nicklebur, MD