Soviet Medical Encyclopedia

Bonnet's Signs

Neurology

Also known as: Bonnet symptom, Bonnet's symptom

Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.

Summary

Bonnet's signs are clinical indicators observed in conditions affecting the sciatic nerve. They include a lower gluteal fold and skin folds due to muscle atrophy of the affected limb, and pain elicited by simultaneous adduction during passive flexion of the hip and knee.

Encyclopedia entry (1928–1936)

BONNET'S SIGNS (Bonnet), observed in diseases of the sciatic nerve: 1) a lower position of the gluteal fold and the formation of skin folds in the gluteal region of the affected side; the sign is caused by muscle atrophy of the diseased leg; 2) when the diseased leg is passively flexed at the hip and knee joints, no pain is noted, but pain appears upon the simultaneous adduction of the affected limb.

Cite this page

“Bonnet's Signs.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/bonnets-signs/