Keyhole surgery is surgery performed with thin instruments through two or more tiny cuts, or portals.

arthroscopy view of normal cartilage


Keyhole surgery of a joint is called arthroscopy

The word 'arthro' implies 'joint', so arthroscopy is keyhole surgery where one uses narrow instruments to look into a joint via a tiny incision or portal, and the image is relayed onto a monitor in front of the surgeon's head.

Arthroscopic surgery

Diagnostic Arthroscopy

This course gives one an overview of the anatomy of the knee as the surgeon sees it during arthroscopy. The reader will get an idea of how the surgeon's view inside the knee is dependent upon the positioning of the portals and instruments.



Arthroscopic proficiency: methods in evaluating competency. Hodgins JL and Veillette C. BMC Med Educ. 2013; 13: 61.

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