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Myoelectric motor execution and sensory training to treat chronic pain and paralysis in a replanted arm: a case study.

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Title: Myoelectric motor execution and sensory training to treat chronic pain and paralysis in a replanted arm: a case study.
Authors: Kristoffersen, Morten B.1,2,3 (AUTHOR) mortenb@chalmers.se, Munoz-Novoa, Maria1,3 (AUTHOR), Buist, Mirka1,3 (AUTHOR), Emadeldin, Mona1,3 (AUTHOR), Reinholdt, Carina3,4 (AUTHOR), Ortiz-Catalan, Max1,5,6 (AUTHOR)
Source: Journal of NeuroEngineering & Rehabilitation (JNER). 11/23/2024, Vol. 21 Issue 1, p1-9. 9p.
Subjects: Arm amputation, Perceptual learning, Telerehabilitation, Chronic pain, Neuralgia, Wrist
Abstract: Background: Following upper limb amputation, surgeries such as arm transplantation or replantation might be an option to restore function. After such surgeries, rehabilitation of the arm is needed. However, conventional rehabilitation is dependent on some volitional movement of the arm. If there is no or minimal movement of the arm, conventional rehabilitation might not be successful. The purpose of this study is to evaluate a novel combination of myoelectric motor execution (MME) and sensory training (ST) to reduce pain and improve upper limb function in a person with a highly impaired replanted arm. Methods: The participant, a 72-year-old male, had his right arm replanted after a traumatic accident. No functional recovery was achieved following conventional rehabilitation and chronic neuropathic pain developed post-surgery. The participant then received 18 sessions of MME in which intended movements were decoded from the replanted arm's myoelectric signals using machine learning and real-time feedback was provided on a screen. Nine sessions included ST using tactile grids where the participant discriminated different sensations. Results: The participant regained active extension of the thumb (4 degrees) and regained active wrist movement (flex: 6 degrees, extend: 10 degrees), both of which had no active movement prior the MME interventions. He also perceived an increase in sensation in the thumb and fingers. Pain levels fluctuated throughout the study and no consistent change could be concluded. Conclusion: MME is a novel virtual rehabilitation treatment which provides feedback using virtual limbs and serious games. MME combined with ST is a potential rehabilitation treatment for individuals with highly impaired arms and hands which might ameliorate chronic neuropathic pain. [ABSTRACT FROM AUTHOR]
Copyright of Journal of NeuroEngineering & Rehabilitation (JNER) is the property of BioMed Central and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Myoelectric motor execution and sensory training to treat chronic pain and paralysis in a replanted arm: a case study.
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  Data: <searchLink fieldCode="AR" term="%22Kristoffersen%2C+Morten+B%2E%22">Kristoffersen, Morten B.</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<i> mortenb@chalmers.se</i><br /><searchLink fieldCode="AR" term="%22Munoz-Novoa%2C+Maria%22">Munoz-Novoa, Maria</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Buist%2C+Mirka%22">Buist, Mirka</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Emadeldin%2C+Mona%22">Emadeldin, Mona</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Reinholdt%2C+Carina%22">Reinholdt, Carina</searchLink><relatesTo>3,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ortiz-Catalan%2C+Max%22">Ortiz-Catalan, Max</searchLink><relatesTo>1,5,6</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+NeuroEngineering+%26+Rehabilitation+%28JNER%29%22">Journal of NeuroEngineering & Rehabilitation (JNER)</searchLink>. 11/23/2024, Vol. 21 Issue 1, p1-9. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Arm+amputation%22">Arm amputation</searchLink><br /><searchLink fieldCode="DE" term="%22Perceptual+learning%22">Perceptual learning</searchLink><br /><searchLink fieldCode="DE" term="%22Telerehabilitation%22">Telerehabilitation</searchLink><br /><searchLink fieldCode="DE" term="%22Chronic+pain%22">Chronic pain</searchLink><br /><searchLink fieldCode="DE" term="%22Neuralgia%22">Neuralgia</searchLink><br /><searchLink fieldCode="DE" term="%22Wrist%22">Wrist</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Background: Following upper limb amputation, surgeries such as arm transplantation or replantation might be an option to restore function. After such surgeries, rehabilitation of the arm is needed. However, conventional rehabilitation is dependent on some volitional movement of the arm. If there is no or minimal movement of the arm, conventional rehabilitation might not be successful. The purpose of this study is to evaluate a novel combination of myoelectric motor execution (MME) and sensory training (ST) to reduce pain and improve upper limb function in a person with a highly impaired replanted arm. Methods: The participant, a 72-year-old male, had his right arm replanted after a traumatic accident. No functional recovery was achieved following conventional rehabilitation and chronic neuropathic pain developed post-surgery. The participant then received 18 sessions of MME in which intended movements were decoded from the replanted arm's myoelectric signals using machine learning and real-time feedback was provided on a screen. Nine sessions included ST using tactile grids where the participant discriminated different sensations. Results: The participant regained active extension of the thumb (4 degrees) and regained active wrist movement (flex: 6 degrees, extend: 10 degrees), both of which had no active movement prior the MME interventions. He also perceived an increase in sensation in the thumb and fingers. Pain levels fluctuated throughout the study and no consistent change could be concluded. Conclusion: MME is a novel virtual rehabilitation treatment which provides feedback using virtual limbs and serious games. MME combined with ST is a potential rehabilitation treatment for individuals with highly impaired arms and hands which might ameliorate chronic neuropathic pain. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of NeuroEngineering & Rehabilitation (JNER) is the property of BioMed Central and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Text: English
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      – SubjectFull: Arm amputation
        Type: general
      – SubjectFull: Perceptual learning
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      – TitleFull: Myoelectric motor execution and sensory training to treat chronic pain and paralysis in a replanted arm: a case study.
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              Text: 11/23/2024
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