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The International Association for the Study of Pain defines phantom limb pain (PLP) as that pain referred to a part of the body that has been previously removed as if it were still present. It affects between 55-80% of the population who has suffered an amputation, but not in the same frequency and intensity. Graded motor imagery (GMI) is a progressive, physiotherapeutic treatment modality developed to train and reorganize the brain based on three consecutive techniques: laterality recognition, motor imagery, and mirror therapy. The scientific evidence on the implementation of GMI in PLP is scarce, noting that there is no standardized way to use it in this patient profile. Therefore, the need is generated to develop and validate a GMI protocol to address the PLP and test its effectiveness.
The study hypothesis is that graded motor imagery is a conservative treatment method based on motor learning, neuroplasticity, and mirror neuron stimulation that may have positive effects in decreasing phantom limb pain in the amputated patient, and as a consequence, decrease the associated psychological factors and improve the quality of life and functionality of the person.
A randomized clinical trial will be performed with simple blinding, following the CONSORT guide for this type of study.
It will be carried out at the community level with supervision and follow-up by the principal investigator.
Full description
The International Association for the Study of Pain defines phantom limb pain (PLP) as that pain referred to a part of the body that has been previously removed as if it were still present. It affects between 55-80% of the population who has suffered an amputation, but not in the same frequency and intensity. The persistence of this pain over time may decrease the person's quality of life. The main hypothesis is that after an amputation, maladaptive plasticity occurs at the level of the primary motor and sensory cortex, causing an incongruity of visual, motor and sensory information.
Graded motor imagery (GMI) is a progressive, physiotherapeutic treatment modality developed to train and reorganize the brain based on three consecutive techniques: laterality recognition, motor imagery, and mirror therapy. The scientific evidence on the implementation of GMI in PLP is scarce, noting that there is no standardized way to use it in this patient profile. Therefore, the need is generated to develop and validate a GMI protocol to address the PLP and test its effectiveness.
Therefore, at the beginning of this project, a systematic review was performed to know the effectiveness of the GMI, and the techniques that make it up, on the PLP of the amputated patient, and thus be able to design an GMI protocol based on scientific evidence. Subsequently, this protocol was validated through a group of international experts through a study with Delphi methodology, resulting in the GMI protocol called GraMI.
The GraMI protocol is easy to implement, allowing the patient to perform it autonomously at home with the follow-up of a professional. It is necessary to have a mirror box and a mobile application to be able to carry out the intervention. During the COVID-19 pandemic, many patients remained in their homes confined without being able to access their rehabilitation, which caused alterations in the quality of life, in the prescribed treatment and in the evolution of the symptoms. The promotion of the patient's self-care at home, enhances their active participation and the intensity of the intervention, so that greater benefits can be obtained and consequently improvement in the quality of life.
Objectives:
Main objective:
Secondary objectives:
A randomized clinical trial will be performed with simple blinding, following the CONSORT guide for this type of study.
It will be carried out at the community level with supervision and follow-up by the principal investigator.
During recruitment, a person outside the intervention will randomize the participants through sealed envelopes where they will be assigned to the control group or intervention group. A non-probabilistic sampling type for quotas will be used.
The intervention of the two groups will last 9 weeks plus 12 weeks of follow-up. During the study, three assessments will be performed, one at the beginning, one after the intervention (9 weeks) and one follow-up (12 weeks post-intervention).
These assessments will collect quantitative variables and also conduct semi-structured individual interviews with participants who are part of the intervention group in order to know and understand the influence of phantom limb pain in their lives and the degree of satisfaction obtained through the intervention.
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36 participants in 2 patient groups
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Sandra Rierola Fochs
Data sourced from clinicaltrials.gov
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