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Comparing the effects of two treatment methods on phantom pain and prosthesis embodiment in unilateral lower limb amputees: using fMRI

Comparing the Effects of Graded Motor Imagery Technique and Mirror Therapy on Phantom Pain and Prosthesis Embodiment in Unilateral Lower Limb Amputees: An fMRI Clinical Trial Study

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
IRCT
Registry ID
IRCT20250920067297N1
Enrollment
20
Registered
2025-09-26
Start date
2025-10-07
Completion date
Unknown
Last updated
2025-10-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Traumatic Unilateral Below the knee Amputees. Complete traumatic amputation at level between knee and ankle

Interventions

Intervention 1: Intervention group: The GMI group will undergo GMI intervention at least once a day for 6 weeks. The GMI technique has three stages, each stage lasting 2 weeks. Stage 1 (Determination

Sponsors

Iran University of Medical Sciences
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 50 Years

Inclusion criteria

Inclusion criteria: -Unilateral below knee amputations -At least one-month after receiving prosthesis -At least 3 months after amputation -Obtaining a score of 4 or 5 on each of the questions in items 4 and 5 of the Kinesthetic and Visual Imagery Questionnaire (KVIQ) Questionnaire - Eigtheen to fifteen years old -Ability to read in Persian -Absence of cortical disorders -Absence of visual impairments -Absence of comorbidities

Exclusion criteria

Exclusion criteria: -Failure to continue the GMI or mirror therapy intervention process until the end of the study -Failure to complete questionnaires -Presence of neuroma in the amputated limb -Participants with simultaneous upper limb amputations

Design outcomes

Primary

MeasureTime frame
Phantom pain. Timepoint: Before and After the intervention. Method of measurement: TAPES questionnaire and VAS.;Prosthesis Embodiment. Timepoint: Before and After the intervention. Method of measurement: PES questionnaire.;Activity of cortical areas of the brain. Timepoint: Before and After the intervention. Method of measurement: fMRI.

Secondary

MeasureTime frame
Duration of using the present prosthesis. Timepoint: Before the intervention. Method of measurement: Questionnaire.;Time to amputaion. Timepoint: Before the intervention. Method of measurement: Questionnaire.

Countries

Iran (Islamic Republic of)

Contacts

Public ContactAmir Ali Gordahani

Iran University of Medical Sciences

amiraligordahani@gmail.com+98 21 2222 0947

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026