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[Big-toe localizing test--clinical study of proprioceptive localization].

T Fukutake1, K Hirayama

  • 1Department of Neurology, School of Medicine, Chiba University.

Rinsho Shinkeigaku = Clinical Neurology
|November 1, 1992
PubMed
Summary

The big-toe localizing test (BTLT) assesses proprioceptive localization, a sense of limb position. This new test is more sensitive than previous methods for detecting sensory impairments, particularly those affecting the posterior column-medical lemniscal system.

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Area of Science:

  • Neuroscience
  • Sensory Physiology

Context:

  • Proprioception is crucial for limb localization.
  • The thumb localizing test (TLT) previously assessed this sense.

Purpose:

  • To develop and validate the big-toe localizing test (BTLT) as a measure of proprioceptive localization.
  • To compare the BTLT's sensitivity with existing tests for sensory impairment.

Summary:

  • The BTLT assesses proprioceptive sense by having patients locate their big toe with their eyes closed.
  • Deficits in BTLT correlate with lesions in the posterior column-medial lemniscal system.
  • The BTLT is more sensitive than tests for passive movement and posture appreciation.

Impact:

  • The BTLT offers a more sensitive diagnostic tool for neurological conditions affecting proprioception.

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  • Findings contribute to understanding sensory pathways and localization deficits.