Trajectory of phantom limb pain relief using mirror therapy

Retrospective analysis of two studies

Sarah C. Griffin, Sean Curran, Wai Yiu Chan, Sacha B. Finn, Chris I. Baker, Paul F. Pasquina, Jack Tsao

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Background and purpose Research indicates that mirror therapy reduces phantom limb pain (PLP). Objectives were to determine when mirror therapy works in those who respond to treatment, the relevance of baseline PLP to when pain relief occurs, and what pain symptoms respond to mirror therapy. Methods Data from two independent cohorts with unilateral lower limb amputation were analyzed for this study (n = 33). Mirror therapy consisted of 15-min sessions in which amputees performed synchronous movements of the phantom and intact legs/feet. PLP was measured using a visual analogue scale and the Short-Form McGill Pain Questionnaire. Results The severity of PLP at the beginning of treatment predicted when pain relief occurred. Those with low baseline PLP experienced a reduction (p < 0.05) in PLP by session 7 of treatment, those with medium baseline PLP experienced pain relief by session 14 of treatment, and those with high baseline PLP experienced pain relief by session 21 of treatment. Mirror therapy reduced throbbing, shooting, stabbing, sharp, cramping, aching, tender, splitting, tiring/exhausting, and punishing-cruel pain symptoms. Conclusion The degree of PLP at baseline predicts when mirror therapy relieves pain. Implications This article indicates that the degree of baseline PLP affects when mirror therapy relieves pain: relief occurs by session 7 in patients with low PLP but by session 21 in patients with high PLP. Clinicians should anticipate slower pain relief in patients who begin treatment with high levels of pain. ClinicalTrials.gov numbers: NCT00623818 and NCT00662415.

Original languageEnglish (US)
Pages (from-to)98-103
Number of pages6
JournalScandinavian Journal of Pain
Volume15
DOIs
StatePublished - Apr 1 2017

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Phantom Limb
Pain
Therapeutics
Amputees
Pain Measurement
Visual Analog Scale
Amputation

All Science Journal Classification (ASJC) codes

  • Clinical Neurology
  • Anesthesiology and Pain Medicine

Cite this

Trajectory of phantom limb pain relief using mirror therapy : Retrospective analysis of two studies. / Griffin, Sarah C.; Curran, Sean; Chan, Wai Yiu; Finn, Sacha B.; Baker, Chris I.; Pasquina, Paul F.; Tsao, Jack.

In: Scandinavian Journal of Pain, Vol. 15, 01.04.2017, p. 98-103.

Research output: Contribution to journalArticle

Griffin, Sarah C. ; Curran, Sean ; Chan, Wai Yiu ; Finn, Sacha B. ; Baker, Chris I. ; Pasquina, Paul F. ; Tsao, Jack. / Trajectory of phantom limb pain relief using mirror therapy : Retrospective analysis of two studies. In: Scandinavian Journal of Pain. 2017 ; Vol. 15. pp. 98-103.
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abstract = "Background and purpose Research indicates that mirror therapy reduces phantom limb pain (PLP). Objectives were to determine when mirror therapy works in those who respond to treatment, the relevance of baseline PLP to when pain relief occurs, and what pain symptoms respond to mirror therapy. Methods Data from two independent cohorts with unilateral lower limb amputation were analyzed for this study (n = 33). Mirror therapy consisted of 15-min sessions in which amputees performed synchronous movements of the phantom and intact legs/feet. PLP was measured using a visual analogue scale and the Short-Form McGill Pain Questionnaire. Results The severity of PLP at the beginning of treatment predicted when pain relief occurred. Those with low baseline PLP experienced a reduction (p < 0.05) in PLP by session 7 of treatment, those with medium baseline PLP experienced pain relief by session 14 of treatment, and those with high baseline PLP experienced pain relief by session 21 of treatment. Mirror therapy reduced throbbing, shooting, stabbing, sharp, cramping, aching, tender, splitting, tiring/exhausting, and punishing-cruel pain symptoms. Conclusion The degree of PLP at baseline predicts when mirror therapy relieves pain. Implications This article indicates that the degree of baseline PLP affects when mirror therapy relieves pain: relief occurs by session 7 in patients with low PLP but by session 21 in patients with high PLP. Clinicians should anticipate slower pain relief in patients who begin treatment with high levels of pain. ClinicalTrials.gov numbers: NCT00623818 and NCT00662415.",
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