Wallerian Degeneration
Pronunciation: wah-LEER-ee-an
The process of nerve fiber degeneration following injury to the axon or cell body, relevant to understanding recovery timelines in neurological rehabilitation.
Full Definition
Wallerian degeneration is the programmed breakdown of nerve fibers distal to the site of injury, occurring when an axon is severed from its cell body. This degenerative process follows a predictable timeline and affects rehabilitation planning, as functional recovery depends partly on the extent of Wallerian degeneration versus preservation of neural pathways. In neurorehabilitation, understanding this process helps clinicians set realistic recovery expectations and timing for interventions.
Usage
Usage note: Always capitalize as it is named after Augustus Volney Waller. Distinguish from other degenerative processes in clinical documentation.
In Context
- "The MRI showed evidence of Wallerian degeneration in the corticospinal tract following the patient's stroke." — Neuroimaging report
- "Rehabilitation goals were adjusted based on the extent of Wallerian degeneration observed at three months post-injury." — Treatment planning documentation