Lorenz Bohler (1885 – 1973)

Lorenz Böhler (1885-1973) was an Austrian Physician and Surgeon.

Pioneer in specialised accident hospitals promoting femoral fracture healing in 50-70% (when the usual success was less than 10%). Advocated immobilisation whilst also maintaining active movement of all other body parts and pioneered specialised accident hospitals promoting femoral fracture healing

Published more than 400 scientific papers and was an honorary member of 33 worldwide associations. His book: ‘Treatment of Fractures’ became a top seller being translated in to eight different languages

Eponymously associated with Böhler angle – a measurement on a lateral foot x-ray to determine calcaneal injuries

  • Born on January 15, 1885 in Wolfurt, Vorarlberg, Austria
  • 1911 – Medical degree, University of Vienna Medical School
  • 1914 – Worked at the Mayo Clinic, Rochester, Minnesota. Impressed by the organisational structure of the clinic.
  • 1915 – Awarded Knights Cross of the Order of Franz Joseph
  • 1917 – Awarded Merit Cross of the Austrian Red Cross
  • 1925 – Founded the Unfallkrankenhaus (Accident Hospital) in Vienna. Böhler convinced insurance companies managing patients with workers compensation claims following industrial accidents to organise the care of workers with industrial injuries under his aegis, he could improve the results and reduce costs.
  • 1940 – Elected a member of the German Academy of Sciences Leopoldina
  • 1957 – Became an Honorary Citizen of Wolfurt
  • 1972 – New Accident Hospital named after him ‘Emergency Hospital Vienna Lorenz Böhler’
  • Died on January 20, 1973 in Vienna

Medical Eponyms
Böhler angle (1931)

The angle between line from highest point of anterior process to highest point of posterior facet plus line tangential to superior edge of tuberosity; measured on lateral foot x-ray. Normally 20-40°. If < 20° represents a calcaneal fracture (or more specifically a collapse of the posterior facet)

Normally there exists, between the upper contour of the tuberosity of the os calcis and the line uniting the highest point of the anterior process with the highest point of the posterior articular surface, an angle of thirty to thirty-five degrees. This angle I have named the “tuber-joint angle“. In fractures of the os calcis this angle becomes smaller, straight, or even reversed

Böhler 1931
Böhler L. Diagnosis, pathology and treatment of fractures of the os calcis
  • Fig 5. Normal tuber-joint angle of 40 degrees in a normal os calcis. The longitudinal axis of the astragalus (talus) is inclined.
  • Fig 6. Tuber-joint angle of 20 degrees in a mild fracture of the os calcis. The longitudinal axis of the astragalus (talus) approaches the horizontal

Major Publications



Eponymous terms


Resident medical officer in emergency medicine MB ChB (Uni. Dundee)  MRCS Ed. Avid traveller, yoga teacher, polylinguist with a passion for discovering cultures.

Franz Wiesbauer, MD MPH LITFL author

Internist at the Medical University of Vienna and founder of Medmastery. Master’s degree in public health at Johns Hopkins University as a Fulbright student. Passionate about teaching. | Medmastery | LinkedIn | Twitter |

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