[A forgotten eponym: the Mackiewicz sign].

Harefuah

Rehabilitation Medicine, Sackler Faculty of Medicine, Tel Aviv University Department of Rehabilitation Medicine, Reuth Medical Center Tel Aviv, Israel.

Published: June 2011

AI Article Synopsis

  • In 1913, Dr. Jacob Mackiewicz introduced a clinical sign that helps diagnose femoral nerve or L4 root injuries, known as the "cruralis phenomenon."
  • The maneuver involves the patient lying on their stomach while an examiner lifts the thigh and bends the knee, leading to significant pain in the front of the thigh and groin.
  • This clinical sign is recognized in German and Slavic literature by Mackiewicz’s name, highlighting its relevance in diagnosing nerve injuries.

Article Abstract

In 1913, Dr. Jacob Mackiewicz, a Polish-Jewish neurologist, described a clinical sign (a maneuver) which indicates a femoral nerve injury or L4 root injury. He called it the "cruralis phenomenon", but in the German and Slavic literature, the sign is named after him: "the patient lies prone, the examiner lifts the thigh in one hand, with the other hand, bends the patient's knee slowly; this maneuver causes severe pain in the anterior part of the thigh and over the groin".

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