Truncal_ataxia

Truncal ataxia

Truncal ataxia

Wide-based "drunken sailor" gait symptom

Main article: Ataxia

Truncal ataxia (or trunk ataxia) is a wide-based "drunken sailor" gait characterised by uncertain starts and stops, lateral deviations and unequal steps. It is an instability of the trunk and often seen during sitting.[2] It is most visible when shifting position or walking heel-to-toe.[1]

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As a result of this gait impairment, falling is a concern in patients with ataxia.[3]

Truncal ataxia affects the muscles closer to the body such as the trunk, shoulder girdle and hip girdle. It is involved in gait stability.[3]

Truncal ataxia is different from appendicular ataxia. Appendicular ataxia affects the movements of the arms and legs. It is caused by lesions of the cerebellar hemispheres.[3]

Causes

Truncal ataxia is caused by midline damage to the cerebellar vermis. There are at least 34 conditions that cause truncal ataxia.[2]

Common

Uncommon

References

  1. [1]
    Dennis, Mark; Bowen, William Talbot; Cho, Lucy (2012-01-27). Mechanisms of Clinical Signs - E-Book. pp. 280–281. ISBN 9780729580755.
  2. [2]
    "NCBI Truncal ataxia". NCBI. Retrieved March 17, 2019.
  3. [3]
    Blumenfeld H (2002). Neuroanatomy through clinical cases. Sunderland, Mass: Sinauer. pp. 670–671. ISBN 0-87893-060-4.
  4. [4]
    "human phenotype ontology". Retrieved March 17, 2019.
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