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Dynamic splint to reduce the passive component of hypertonicity.

J J McPherson, A H Becker, N Franszczak

    Archives of Physical Medicine and Rehabilitation
    |April 1, 1985
    PubMed
    Summary

    Dynamic splinting effectively reduced wrist hypertonus in elderly individuals with hemiparesis post-stroke. This novel dynamic splinting approach proved more effective than passive range of motion exercises and static splinting for managing spasticity.

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    Wrist muscle tone and self-care skill in persons with hemiparesis.

    The American journal of occupational therapy : official publication of the American Occupational Therapy Association·1989

    Area of Science:

    • Neurology
    • Rehabilitation Medicine
    • Biomechanics

    Background:

    • Hypertonus, a common sequela of cerebrovascular accidents (stroke), significantly impacts motor function and quality of life.
    • Hemiparesis following stroke often results in increased passive muscle resistance, complicating rehabilitation efforts.
    • Existing interventions like static splinting and passive range of motion (P-ROM) exercises offer limited efficacy in reducing the passive component of hypertonus.

    Purpose of the Study:

    • To evaluate the effectiveness of a novel dynamic splint in mitigating passive hypertonus in elderly individuals with chronic hemiparesis.
    • To compare the efficacy of dynamic splinting against passive range of motion (P-ROM) exercises in reducing wrist hypertonus.
    • To benchmark dynamic splinting outcomes against previously reported data on static splinting.

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    Main Methods:

    • A comparative study involving eight elderly subjects with hemiparesis, one year post-stroke.
    • Intervention groups received either dynamic splinting or P-ROM exercises over a six-week period.
    • Passive wrist flexion force was quantified using a spring-weighted scale, with measurements taken thrice weekly.

    Main Results:

    • The dynamic splinting group exhibited a statistically significant reduction in wrist hypertonus.
    • No significant reduction in hypertonus was observed in the P-ROM exercise group.
    • Dynamic splinting demonstrated superior efficacy in reducing hypertonus compared to both static splinting and P-ROM exercises.

    Conclusions:

    • Dynamic splinting represents a promising therapeutic strategy for managing hypertonus in chronic hemiparesis.
    • The novel dynamic splint design offers a more effective solution for reducing passive hypertonus than conventional methods.
    • Further research into dynamic splinting applications for post-stroke spasticity is warranted.