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Böhler angle

Dr Henry Knipe and Dr Behrang Amini et al.

Böhler angle, also written as Bohler angle or Boehler angle, is also called the calcaneal angle or tuber joint angle 1.

Böhler angle is the angle between two lines tangent to the calcaneus on the lateral radiograph. These lines are drawn tangent to the anterior and posterior aspects of the superior calcaneus.

The "normal" value for this angle is between 20° to 40°. A value <20° can be seen in calcaneal fractures. However, a mildly decreased Böhler angle may be seen in a normal individual 5 and a normal Böhler angle does not exclude a calcaneal fracture.

Lorenz Böhler (1885-1973) was an Austrian surgeon, regarded as the founder of traumatology 4.

Article information

rID: 1002
Section: Approach
Tag: foot
Synonyms or Alternate Spellings:
  • Bohler’s angle
  • Bohler angle
  • Boehler angle
  • Tuber joint angle
  • Salient angle

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Cases and figures

  • Case 1: normal Böhler angle
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  • Case 2: reduced Böhler angle in calcaneal fracture
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  • Case 3: reduced Böhler angle
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  • Case 4: Böhler angle reduced to 2.5 degreees
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  • Case 5: reduced Böhler angle
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