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      Good sensory recovery of the hand in brachial plexus surgery using the intercostobrachial nerve as the donor Translated title: Boa recuperação da sensibilidade da mão usando o nervo intercostobraquial como doador em cirurgia do plexo braquial

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          Abstract

          ABSTRACT Objective: Restoration of the sensitivity to sensory stimuli in complete brachial plexus injury is very important. The objective of our study was to evaluate sensory recovery in brachial plexus surgery using the intercostobrachial nerve (ICBN) as the donor. Methods: Eleven patients underwent sensory reconstruction using the ICBN as a donor to the lateral cord contribution to the median nerve, with a mean follow-up period of 41 months. A protocol evaluation was performed. Results: Four patients perceived the 1-green filament. The 2-blue, 3-purple and 4-red filaments were perceptible in one, two and three patients, respectively. According to Highet's scale, sensation recovered to S3 in two patients, to S2+ in two patients, to S2 in six patients, and S0 in one patient. Conclusion: The procedure using the ICBN as a sensory donor restores good intensity of sensation and shows good results in location of perception in patients with complete brachial plexus avulsion.

          Translated abstract

          RESUMO Objetivo: A restauração da sensibilidade em pacientes com lesão completa do plexo braquial é muito importante. O objetivo desse estudo foi avaliar a recuperação sensitiva em cirurgia do plexo braquial utilizando o nervo intercostobraquial (NICB) como doador. Métodos: Onze pacientes foram submetidos a reconstrução sensitiva usando o NICB como doador para a contribuição lateral do nervo mediano, com tempo de acompanhamento pós-operatório médio de 41 meses. Um protocolo de avaliação foi realizado. Resultados: Quatro pacientes perceberam o filamento 1-verde. Os filamentos 2-azul, 3-roxo e 4-vermelho foram percebidos por um, dois e três pacientes, respectivamente. Um paciente não apresentou recuperação sensitiva. Dois pacientes obtiveram recuperação S3, dois S2+, seis S2 e um S0, pela escala de Highet. Conclusão: O procedimento usando o NICB como doador promove boa intensidade de recuperação sensitiva e bons resultados são obtidos quanto ao local de percepção em pacientes com avulsão completa do plexo braquial.

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          Most cited references28

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          The moving two-point discrimination test: clinical evaluation of the quickly adapting fiber/receptor system.

          A Dellon (1978)
          As the Weber test evaluates the slowly adapting fiber-receptor system (constant touch), the "moving two-point discrimination test" evaluates the innervation density of the quickly adapting fiber-receptor system which mediates the perception of touch stimuli moving across the hand. Results with this test in 39 hands used as controls and in 63 patients with nerve injuries show it to be a simple, quick, and valid diagnostic tool in nerve compression syndromes and nerve lacerations and an accurate prognosticator and monitor during sensory reeducation following nerve repair.
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            Surgical repair of brachial plexus injury: a multinational survey of experienced peripheral nerve surgeons.

            Brachial plexus injuries (BPIs) are often devastating events that lead to upper-extremity paralysis, rendering the limb a painful extraneous appendage. Fortunately, there are several nerve repair techniques that provide restoration of some function. Although there is general agreement in the medical community concerning which patients may benefit from surgical intervention, the actual repair technique for a given lesion is less clear. The authors sought to identify and better define areas of agreement and disagreement among experienced peripheral nerve surgeons as to the management of BPIs. The authors developed a detailed survey in two parts: one part addressing general issues related to BPI and the other presenting four clinical cases. The survey was mailed to 126 experienced peripheral nerve physicians and 49 (39%) participated in the study. The respondents represent 22 different countries and multiple surgical subspecialties. They performed a mean of 33 brachial plexus reconstructions annually. Areas of significant disagreement included the timing and indications for surgical intervention in birth-related palsy, treatment of neuroma-in-continuity, the best transfers to achieve elbow flexion and shoulder abduction, the use of intra- or extraplexal donors for motor neurotization, and the use of distal or proximal coaptation during nerve transfer. Experienced peripheral nerve surgeons disagree in important ways as to the management of BPI. The decisions made by the various treating physicians underscore the many areas of disagreement regarding the treatment of BPI, including the diagnostic approach to defining the injury, timing of and indications for surgical intervention in birth-related palsy, the treatment of neuroma-in-continuity, the choice of nerve transfers to achieve elbow flexion and shoulder abduction, the use of intra- or extraplexal donors for neurotization, and the use of distal or proximal coaptation during nerve transfer.
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              Hemi-contralateral C7 transfer to median nerve in the treatment of root avulsion brachial plexus injury.

              Because of the poor clinical results in achieving hand function in patients with complete brachial plexus root avulsion with other nerve transfers, we evaluated 111 patients prospectively to evaluate the technique of the hemi-contralateral C7 transfer to the median nerve. The transfer was performed as a primary procedure in 62 patients and as a secondary procedure in additional 49 patients. Twenty-one of the 62 patients in the primary group had sufficient follow-up (at least 3 years) to assess the motor and sensory recovery in the median nerve. The adverse effects of the operation were also analyzed in all 111 patients. Six of the 21 (29%) patients obtained M3 and 4 (19%) experienced M2 recovery of the wrist and finger flexors. Ten (48%) patients obtained S3 and 7 (33%) had S2 recovery in the median nerve area. The rate of the advancing Tinel's sign was markedly different between those achieving M3 function and the remaining patients. Although the age of the patient did not correlate with outcome, patients aged 18 and younger had the best motor recovery (ie, achieving M3 function in 3 of 6 cases). There was no correlation between the timing of the surgery after the initial injury, medical comorbidities, and clinical outcome. After surgery 108 of 111 (97%) patients experienced temporary paresthesia in the median nerve area, which resolved by an average of 2.8 months. Three (3%) patients had motor weakness of the donor limb; this resolved completely in 2 patients and left a mild deficit in wrist extension in 1 patient.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                anp
                Arquivos de Neuro-Psiquiatria
                Arq. Neuro-Psiquiatr.
                Academia Brasileira de Neurologia - ABNEURO (São Paulo, SP, Brazil )
                0004-282X
                1678-4227
                November 2017
                : 75
                : 11
                : 796-800
                Affiliations
                [3] São Paulo SP orgnameInstituto Fleury orgdiv1Departamento de Neurofisiologia Brasil
                [5] São Paulo São Paulo orgnameUniversidade de São Paulo orgdiv1Hospital das Clínicas orgdiv2Faculdade de Medicina Brazil
                [2] São Paulo São Paulo orgnameUniversidade de São Paulo orgdiv1Faculdade de Medicina orgdiv2Hospital das Clínicas Brazil
                [1] São Paulo São Paulo orgnameUniversidade de São Paulo orgdiv1Faculdade de Medicina orgdiv2Hospital das Clínicas Brazil
                [4] São Paulo São Paulo orgnameUniversidade de São Paulo orgdiv1Departamento de Neurologia orgdiv2Divisão de Neurocirurgia Brazil
                Article
                S0004-282X2017001100796
                10.1590/0004-282x20170148
                7613f0eb-6809-42ee-88ed-46bd42a6161c

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 30 July 2017
                : 14 August 2017
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 29, Pages: 5
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                SciELO Brazil


                plexo braquial,nervos intercostais,nervo mediano,transferência de nervo,sensação,percepção,brachial plexus,intercostal nerves,median nerve,nerve transfer,sensation,perception

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