Intervention for phantom limb pain: A randomized single crossover study of mirror therapy

Area of Science:

• Neuroscience
• Rehabilitation Medicine
• Pain Management

Background:

• Phantom limb pain (PLP) is a challenging condition for amputees.
• Existing research on mirror therapy for PLP has limitations in follow-up duration and sample size.
• Mirror therapy aims to resolve visual-proprioceptive dissociation contributing to PLP.

Purpose of the Study:

• To evaluate the efficacy of mirror therapy in reducing phantom limb pain (PLP).
• To assess the long-term effectiveness of mirror therapy up to 12 weeks post-intervention.
• To investigate the impact of mirror therapy on pain intensity, duration, and frequency.

Main Methods:

• A randomized single crossover trial involving 64 amputees with PLP (ages 15-75).
• Participants received 4 weeks of supervised mirror therapy or a sham intervention (covered mirror).
• Pain was assessed using the visual analog scale and Short-Form McGill Pain Questionnaire at baseline and 4, 8, and 12 weeks.

Main Results:

• Significant reduction in PLP was observed in the mirror therapy group compared to the control group (P < 0.0001).
• The control group also experienced significant PLP reduction after switching to mirror therapy.
• Pain relief was sustained for 12 weeks in both groups, with no reported adverse effects.

Conclusions:

• Mirror therapy is an effective treatment for reducing the intensity, duration, and frequency of phantom limb pain (PLP).
• The therapeutic benefits of mirror therapy for PLP are maintained for at least 12 weeks after treatment completion.
• Mirror therapy presents a safe and effective non-pharmacological approach for managing PLP in amputees.