John W Lachman

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

Associate Professor Curtin Medical School, Curtin University. Emergency physician MA (Oxon) MBChB (Edin) FACEM FFSEM Sir Charles Gairdner Hospital.  Passion for rugby; medical history; medical education; and asynchronous learning #FOAMed evangelist. Co-founder and CTO of Life in the Fast lane | Eponyms | Books | Twitter |

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.