Bohler’s Angle

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September 20, 2011 by dailybolusoflr

  • Bohler’s angle (YELLOW LINE) is a calculation made on the lateral foot radiograph to assist in ruling out an occult calcaneal fracture
  • It is measured by drawing a line (GREEN LINE) from the highest point of the anterior process of the calcaneus (GREEN DOT) to the posterior facet (BLUE DOT) and is intersected at the posterior facet (BLUE DOT) with a line (BLUE LINE) drawn from the superior edge of the posterior tuberosity (RED DOT) to the posterior facet (BLUE DOT)
  • It is typically between 20-40 degrees
  • Angles less than 20 degrees should raise high suspicion for fracture
  • Remember: calcaneal fractures has 10% association with spinal fractures

Image courtesy of L. Regan, MD

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