John W Lachman

John W Lachman (1919 – 2007)

John W Lachman (1919 – 2007) was an American Orthopedic Surgeon.

Described as ‘a gentleman to the students, both a taskmaster and teacher for the residents, and a kind and careful physician with his patients…affectionately referred to as “Latch”…completely dedicated his life to serving two purposes: God and orthopedics’

Eponymously associated with the Lachman test of knee ligament stability (1976)


  • Born September 18, 1919 Philadelphia
  • Graduated Medicine Temple University School of Medicine
  • 1965 – Professor Emeritus and former Chairman of the Orthopedic Department at Temple University in Philadelphia
  • 1998 – Retired
  • Died September 22, 2007

Medical Eponyms

  • Lachman Test (1976) Knee examination clinical test to examine knee stability in particular the stability of the anterior cruciate ligament (ACL).


eponymictionary CTA


the person behind the name

English doctor, Southamptom graduate BM BS, training in emergency medicine in Perth, Australia

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