Schaeffer's sign

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Schaeffer's sign is a clinical sign in which squeezing the Achilles tendon elicits an extensor plantar reflex. It is found in patients with pyramidal tract lesions, and is one of a number of Babinski-like responses.{{cite journal |vauthors=Kumar SP, Ramasubramanian D |title=The Babinski sign--a reappraisal |journal=Neurol India |volume=48 |issue=4 |pages=314–8 |date=December 2000 |pmid=11146592 |url=http://www.neurologyindia.com/article.asp?issn=0028-3886;year=2000;volume=48;issue=4;spage=314;epage=8;aulast=Kumar |access-date=2009-04-13}}

The sign takes its name from the German neurologist Max Schaeffer (1852–1923).{{citation needed|date=August 2021}}