- A dictionary of medical eponyms

Strümpell's sign I

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Tibialis phenomenon; a symptom in lesions of the pyramidal tract. In spastic paralysis (spinal paralysis) of the leg a marked dorsal flexion of the great toe and supination of the foot is induced when the patient attempts to flex the knee on abdomen; particularly marked when done against resistance from the investigator.


  • E. A. G. G. von Strümpell:
    Zur Kenntnis der Haut- und Sehnenreflexe bei Nervenkranken.
    Deutsche Zeitschrift für Nervenheilkunde, Berlin, 1899, 15: 254-273. According to one source, this was first described in: Neurologisches Zentralblatt, 1887, 6: 1.

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