Tone-Inhibiting Casting
A technique using inhibitory positioning within a plaster or fibre-glass cast to reduce pathological muscle tone in spastic limbs, often preparatory to orthotic fitting.
Full Definition
Tone-inhibiting casting is employed predominantly in paediatric and neurological rehabilitation to manage spasticity—typically in the ankle plantar flexors—by maintaining the limb in a position that reflexively reduces hypertonia. Unlike serial casting, which is primarily aimed at increasing range of motion through progressive re-casting, tone-inhibiting casting emphasises the neurophysiological effect of sustained positioning. Editors should note that 'tone-inhibiting' is always hyphenated as a compound modifier. The technique produces documentation including a cast log, clinical goals, and an orthotic transition plan.
Usage
Usage note: Always hyphenate 'tone-inhibiting' when used as a compound modifier before a noun. Distinguish from serial casting, which targets range-of-motion gains rather than neurophysiological tone reduction.
In Context
- "Tone-inhibiting casting was initiated over four sessions to reduce calf spasticity prior to fitting a tone-reducing AFO." — Paediatric rehabilitation plan
- "The author used 'inhibitory casting' and 'tone-inhibiting casting' interchangeably; the editor standardised to 'tone-inhibiting casting' throughout per the department's preferred style." — Clinical document copy-edit