The Efficacy of Preventive Regenerative Peripheral Nerve Interface(RPNI) Reconstruction in Amputees
NCT ID: NCT05554900
Last Updated: 2022-09-26
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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UNKNOWN
NA
200 participants
INTERVENTIONAL
2020-05-12
2023-12-31
Brief Summary
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Investigators believe that RPNI can effectively reduce the incidence of post-amputation pain, reduce the degree of pain, improve the wearing rate of prostheses, and help patients return to normal life.
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Detailed Description
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Conditions
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Study Design
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NON_RANDOMIZED
PARALLEL
PREVENTION
DOUBLE
Study Groups
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The control group
The control group received traditional amputation.The proximal nerve is blocked with lidocaine and cut off. The end of the nerve retracted as far as possible and the bleeding point is ligated if necessary.
No interventions assigned to this group
The experimental group（RPNIs group）
The experimental group received regenerative peripheral nerve interface（RPNI） surgery.
preventive regenerative peripheral nerve interface reconstruction
Each RPNI unit consists of nerve stump and free autologous muscle graft that is cut off from healthy muscle of the amputated limb. The muscle graft is approximately 30×15×5 mm.The ends of the transected nerve are placed within the muscle belly of the free muscle grafts in an orientation that is parallel to the muscle fibers. Next, the nerve is secured distally with 6-0 non-absorbable monofilament sutures in an epimysial-to-epineurial fashion. The nerve is then wrapped around completely via muscle graft and epimysial securing sutures. All RPNI units are placed in areas remote from the surgical incision and from the weight-bearing surface of the limb.
Interventions
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preventive regenerative peripheral nerve interface reconstruction
Each RPNI unit consists of nerve stump and free autologous muscle graft that is cut off from healthy muscle of the amputated limb. The muscle graft is approximately 30×15×5 mm.The ends of the transected nerve are placed within the muscle belly of the free muscle grafts in an orientation that is parallel to the muscle fibers. Next, the nerve is secured distally with 6-0 non-absorbable monofilament sutures in an epimysial-to-epineurial fashion. The nerve is then wrapped around completely via muscle graft and epimysial securing sutures. All RPNI units are placed in areas remote from the surgical incision and from the weight-bearing surface of the limb.
Eligibility Criteria
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Inclusion Criteria
* Age≥6 years
* Follow-up time≥12 weeks
Exclusion Criteria
* Age\<6 years
* Preoperative complications included cervical spondylosis, lumbar spinal stenosis, piriformis syndrome, cubital tunnel syndrome and other peripheral nerve entrapment syndrome
6 Years
ALL
No
Sponsors
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Peking University People's Hospital
OTHER
Responsible Party
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Li Guangxue
Deputy Chief Physician
Locations
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Peking University People's Hospital
Beijing, , China
Countries
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Central Contacts
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Facility Contacts
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References
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Watson J, Gonzalez M, Romero A, Kerns J. Neuromas of the hand and upper extremity. J Hand Surg Am. 2010 Mar;35(3):499-510. doi: 10.1016/j.jhsa.2009.12.019.
Zimmermann M. Pathobiology of neuropathic pain. Eur J Pharmacol. 2001 Oct 19;429(1-3):23-37. doi: 10.1016/s0014-2999(01)01303-6.
Bowsher D. Human "autotomy". Pain. 2002 Jan;95(1-2):187-9. doi: 10.1016/s0304-3959(01)00389-x.
Niederberger E, Kuhlein H, Geisslinger G. Update on the pathobiology of neuropathic pain. Expert Rev Proteomics. 2008 Dec;5(6):799-818. doi: 10.1586/14789450.5.6.799.
McFarland LV, Hubbard Winkler SL, Heinemann AW, Jones M, Esquenazi A. Unilateral upper-limb loss: satisfaction and prosthetic-device use in veterans and servicemembers from Vietnam and OIF/OEF conflicts. J Rehabil Res Dev. 2010;47(4):299-316. doi: 10.1682/jrrd.2009.03.0027.
Davis RW. Phantom sensation, phantom pain, and stump pain. Arch Phys Med Rehabil. 1993 Jan;74(1):79-91.
Vlot MA, Wilkens SC, Chen NC, Eberlin KR. Symptomatic Neuroma Following Initial Amputation for Traumatic Digital Amputation. J Hand Surg Am. 2018 Jan;43(1):86.e1-86.e8. doi: 10.1016/j.jhsa.2017.08.021. Epub 2017 Sep 23.
Ives GC, Kung TA, Nghiem BT, Ursu DC, Brown DL, Cederna PS, Kemp SWP. Current State of the Surgical Treatment of Terminal Neuromas. Neurosurgery. 2018 Sep 1;83(3):354-364. doi: 10.1093/neuros/nyx500.
Poppler LH, Parikh RP, Bichanich MJ, Rebehn K, Bettlach CR, Mackinnon SE, Moore AM. Surgical interventions for the treatment of painful neuroma: a comparative meta-analysis. Pain. 2018 Feb;159(2):214-223. doi: 10.1097/j.pain.0000000000001101.
Barbour JR, Yee A, Moore AM, Trulock EP, Buchowski JM, Mackinnon SE. Cadaveric nerve allotransplantation in the treatment of persistent thoracic neuralgia. Ann Thorac Surg. 2015 Apr;99(4):1414-7. doi: 10.1016/j.athoracsur.2014.06.092.
Elliot D. Surgical management of painful peripheral nerves. Clin Plast Surg. 2014 Jul;41(3):589-613. doi: 10.1016/j.cps.2014.03.004.
Lipinski LJ, Spinner RJ. Neurolysis, neurectomy, and nerve repair/reconstruction for chronic pain. Neurosurg Clin N Am. 2014 Oct;25(4):777-87. doi: 10.1016/j.nec.2014.07.002. Epub 2014 Aug 14.
Kuiken TA, Miller LA, Lipschutz RD, Lock BA, Stubblefield K, Marasco PD, Zhou P, Dumanian GA. Targeted reinnervation for enhanced prosthetic arm function in a woman with a proximal amputation: a case study. Lancet. 2007 Feb 3;369(9559):371-80. doi: 10.1016/S0140-6736(07)60193-7.
Peters BR, Russo SA, West JM, Moore AM, Schulz SA. Targeted muscle reinnervation for the management of pain in the setting of major limb amputation. SAGE Open Med. 2020 Sep 15;8:2050312120959180. doi: 10.1177/2050312120959180. eCollection 2020.
Santosa KB, Oliver JD, Cederna PS, Kung TA. Regenerative Peripheral Nerve Interfaces for Prevention and Management of Neuromas. Clin Plast Surg. 2020 Apr;47(2):311-321. doi: 10.1016/j.cps.2020.01.004. Epub 2020 Feb 1.
Kubiak CA, Kemp SWP, Cederna PS, Kung TA. Prophylactic Regenerative Peripheral Nerve Interfaces to Prevent Postamputation Pain. Plast Reconstr Surg. 2019 Sep;144(3):421e-430e. doi: 10.1097/PRS.0000000000005922.
Woo SL, Urbanchek MG, Cederna PS, Langhals NB. Revisiting nonvascularized partial muscle grafts: a novel use for prosthetic control. Plast Reconstr Surg. 2014 Aug;134(2):344e-346e. doi: 10.1097/PRS.0000000000000317. No abstract available.
Other Identifiers
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lgx2022
Identifier Type: -
Identifier Source: org_study_id
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