Gustaw Bikeles

Bikeles sign is a clinical test used for determining neurological damage in the upper arm.

Bikeles was born in Lemberg (then part of Austro-Hungary, now Lviv in Ukraine) in a Jewish family.

Graduating in 1890 he began to work with Richard von Krafft-Ebing and Heinrich Obersteiner.

He collaborated with Adolf Beck with experiments on dogs, cats and rabbits to examine nerve tissue using electrical signals.

[1][2] Bikeles sign is an established orthopaedic and neurological test to detect damage in the nerves of the upper arm and spine.