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Lazarević-Lasègue sign.

Péricles Maranhão-Filho1, Maurice Vincent2

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The Lasègue sign for sciatica was not described by Lasègue but by Laza Lazarević, who also correctly explained its mechanism. This finding corrects historical attribution for the neurological examination technique.

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Area of Science:

  • Neurology
  • Medical History

Background:

  • The straight leg raise test, commonly known as the Lasègue sign, is a standard clinical examination for sciatica.
  • Historical accounts attribute the description and understanding of this sign to Charles Lasègue.

Discussion:

  • This note challenges the traditional attribution of the straight leg raise test to Charles Lasègue.
  • It highlights the original work of Serbian physician Laza Lazarević in reporting and interpreting the sign.

Key Insights:

  • Laza Lazarević, not Charles Lasègue, first documented the seminal sign for sciatica.
  • Lazarević also provided the correct pathophysiological explanation for the sign's mechanism.

Outlook:

  • Revisiting historical medical literature can correct misattributions and enhance understanding of clinical signs.
  • Accurate historical context is crucial for medical education and the interpretation of diagnostic tests.