ataxia
Pronunciation: uh-TAK-see-uh
A neurological sign characterised by impaired coordination of voluntary movements, often affecting gait, speech, and fine motor control.
Full Definition
Ataxia refers to a failure of muscular coordination that results in irregular, unsteady movements and is a common sequela of cerebellar lesions, peripheral neuropathy, or vestibular disorders encountered in rehabilitation populations. It is not a diagnosis in itself but a clinical sign that may manifest as gait ataxia, limb ataxia, or truncal ataxia. Editors should note that 'ataxia' is always a noun; the adjective form is 'ataxic' (e.g., 'ataxic gait'). It must not be confused with 'apraxia', which involves motor planning rather than coordination. In rehabilitation reports, the type and severity of ataxia should be specified.
Usage
Usage note: Use the adjective 'ataxic' when modifying a noun (e.g., 'ataxic gait', not 'ataxia gait'). Specify the anatomical subtype where possible.
In Context
- "The patient presented with truncal ataxia and required a wide-based gait aid for safe ambulation." — Inpatient rehabilitation progress note
- "Cerebellar ataxia secondary to stroke was the primary impairment addressed in this admission." — Discharge summary