Medical Terminology Daily (MTD) is a blog sponsored by Clinical Anatomy Associates, Inc. as a service to the medical community, medical students, and the medical industry. We post anatomical, medical or surgical terms, their meaning and usage, as well as biographical notes on anatomists, surgeons, and researchers through the ages. Be warned that some of the images used depict human anatomical specimens.

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A Moment in History

Antoine Louis

French surgeon, anatomist, and physiologist. Following his medical studies and a long career as a physiologist, Antoine Louis was named Permanent Secretary of the Royal French Academy of Surgery. His other titles were those of Professor of the Royal Academy, Consultant Surgeon of the Armies of the King, member of the Royal Society of Sciences of Montpellier, Inspector of the Royal Military Hospitals, and Doctor in Law of the University of Paris. As a member of these academies Louis was instrumental in the design and construction of the guillotine. Initially called the "Louisette", this device was later named after another French physician in the same committee, Dr. Joseph-Ignace Guillotin.

Antoine Louis' name is better know to history as the eponymic origin of the "sternal angle" also know as the "Angle of Louis" and synonymously (probably by misspelling or translation) the "angle of Lewis", and "angle of Ludwig". This anatomical landmark is extremely important as it serves as a superficial landmark for important anatomical occurrences (click here).

As a point of controversy, there are some that contest the history of this eponym adjudicating it to Pierre Charles Alexander Louis (1787-1872), another French physician dedicated to the study of tuberculosis.

1. Srickland, N; Strickland A Angle of Louis, More Than Meets the Eye. MedTalks:
2. Ramana, R. K., Sanagala, T. and Lichtenberg, R. (2006), A New Angle on the Angle of Louis. Congestive Heart Failure, 12: 197–199
. "The origin of Medical Terms" Skinner, HA; 1970

 "Clinical Anatomy Associates, Inc., and the contributors of "Medical Terminology Daily" wish to thank all individuals who donate their bodies and tissues for the advancement of education and research”.

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Sanford Osher, MD, FACOG

Dr. Sanford S. Osher is a Fellow of the American College of Obstetricians and Gynecologists and has his practice in Cincinnati, Ohio. He is a minimally invasive reproductive surgeon and as such, he deals constantly with difficult cases.

Dr. Osher is recognized world-wide as a pioneer in minimally invasive surgery, where he was at the cutting-edge of the dawn of laparoscopic surgery. He has trained a large number of surgeons in minimally invasive surgery, both domestic and internationally.

He is well respected by his patients and recognized for his personal care. Besides his passion for his profession, Dr. Osher is a member of the League of Cincinnati Theatres Panel, and a member of the Acclaim Panel. 

A world-traveler, Dr. Osher has been a member of many international missions of care, where he helps the unfortunate through his surgical skills and teaching capabilities. Although not willing to talk much about it, Dr. Osher was one of the first physicians on the ground immediately following the 2010 Haiti earthquake.

Clinical Anatomy Associates, Inc is proud to have Dr. Osher as a contributor to "Medical Terminology Daily" and as a consultant to our team.


If you are a patient and need to contact Dr. Osher:

Sanford S. Osher, M.D.
10495 Montgomery Road
CincinnatiOH 45242
To contact Dr. Osher via e-mail, please use our "Contact Us" form.