Orthosis
Pronunciation: or-THOH-sis
External device applied to support, align, prevent deformity, or improve function of movable body parts.
Full Definition
An orthosis is an externally applied device designed to support, align, prevent or correct deformities, or improve the function of movable parts of the body. In neuro-rehabilitation, orthoses are commonly used to manage muscle weakness, spasticity, contractures, and abnormal movement patterns. Examples include ankle-foot orthoses (AFOs) for drop foot, hand splints for positioning and function, and spinal orthoses for trunk support. The selection, fitting, and training in orthotic use is a critical component of rehabilitation, requiring collaboration between therapists, orthotists, and patients to ensure optimal functional outcomes and compliance.
Usage
Usage note: Plural is orthoses; distinguish from prosthesis which replaces missing body parts.
In Context
- "The ankle-foot orthosis significantly improved the patient's gait pattern and walking endurance." — Orthotics consultation
- "A resting hand orthosis was fabricated to prevent contracture formation during the acute phase." — Occupational therapy note