Locomotor ataxia
Encyclopedia
Locomotor ataxia
Ataxia
Ataxia is a neurological sign and symptom that consists of gross lack of coordination of muscle movements. Ataxia is a non-specific clinical manifestation implying dysfunction of the parts of the nervous system that coordinate movement, such as the cerebellum...

is the inability to precisely control one's own bodily movements. Persons afflicted with this disease may walk in a jerky, nonfluid manner. They will not know where their arms and legs are without looking, but can, for instance, feel and locate a hot object placed against their feet. It is often a symptom of tabes dorsalis
Tabes dorsalis
Tabes dorsalis is a slow degeneration of the sensory neurons that carry afferent information. The degenerating nerves are in the dorsal columns of the spinal cord and carry information that help maintain a person's sense of position , vibration, and discriminative touch.-Cause:Tabes dorsalis is...

, which is a key finding in tertiary syphilis
Syphilis
Syphilis is a sexually transmitted infection caused by the spirochete bacterium Treponema pallidum subspecies pallidum. The primary route of transmission is through sexual contact; however, it may also be transmitted from mother to fetus during pregnancy or at birth, resulting in congenital syphilis...

.

It is caused by degeneration of the posterior (dorsal) white column of the spinal cord.
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