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Decrease in phantom limb pain associated with prosthesis-induced increased use of an amputation stump in humans.

T Weiss1, W H Miltner, T Adler

  • 1Friedrich Schiller University, Institute of Psychology, Department of Biological and Clinical Psychology, Jena, Germany.

Neuroscience Letters
|October 3, 1999
PubMed
Summary
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Wearing a functional Sauerbruch prosthesis significantly reduced phantom limb pain in upper extremity amputees. A cosmetic prosthesis did not alter pain levels, suggesting functional use is key to managing phantom limb pain.

Area of Science:

  • Neuroscience
  • Rehabilitation Medicine
  • Prosthetics

Background:

  • Phantom limb pain is a common complication following amputation.
  • Cortical reorganization, specifically afferent-decrease, is linked to phantom limb pain intensity.
  • The impact of prosthesis type on phantom limb pain and sensation is not fully understood.

Purpose of the Study:

  • To investigate the effect of a functional Sauerbruch prosthesis versus a cosmetic prosthesis on phantom limb pain, non-painful phantom limb sensation, and telescoping in upper extremity amputees.
  • To explore the potential mechanisms underlying changes in phantom limb pain related to prosthesis use.

Main Methods:

  • A questionnaire-based study comparing two groups of upper extremity amputees.
  • Group 1: Patients wearing a functionally effective Sauerbruch prosthesis allowing extensive limb use.

Related Experiment Videos

  • Group 2: Patients wearing a cosmetic prosthesis with limited functional benefit.

    • Main Results:

    • The Sauerbruch prosthesis group reported a significant and substantial decrease in phantom limb pain.
    • The cosmetic prosthesis group showed no significant change in phantom limb pain.
    • Neither group experienced a reduction in non-painful phantom limb sensation or telescoping.

    Conclusions:

    • Functional use of an amputation stump, facilitated by a Sauerbruch prosthesis, may alleviate phantom limb pain.
    • This effect could be mediated by use-dependent, afferent-increase cortical reorganization counteracting injury-related afferent-decrease reorganization.
    • Further research is needed to replicate these findings and explore therapeutic implications.