Dysdiadochokinesia refers to an impairment in coordination of movement. Diadochokinesis, which is the rapid execution of antagonistic movements, such as alternating pronation and supination of the hand, is only limitedly achieved in dysdiadochokinesia.
Etiology
Dysdiadochokinesia usually arises from a cerebellar lesion, such as[^1]:
Other causes include[^1]:
Neuroinfectious or neuroinflammatory conditions
Neurodegenerative diseases (e.g., Huntington's disease, Parkinson's disease)
Psychiatric disorders (e.g. schizophrenia)
Toxic, metabolic, or medication-related causes can also lead to dysdiadochokinesia[^1].
Neurosurgical Relevance
The clinical examination for dysdiadochokinesia is of significant importance in neurosurgery, as it is often an indicator of cerebellar disorders.