ROLE OF ARTERIOVENOUS VASCULAR LOOPS IN MICROSURGICAL RECONSTRUCTION OF THE EXTREMITIES.

Abstract:

Objective:To analyze 10 consecutive cases of microsurgical arteriovenous loops created to reconstruct complex injuries from March 2011 to May 2012. Methods:This observational cohort-type study conducted by the Hand and Microsurgery Group at the HC-FMUSP included patients who were candidates for microsurgical reconstruction as a last alternative to amputation of the limb with proven absence of adequate recipient vessels for primary microsurgical anastomosis, in a prospective and consecutive manner. We analyzed 14 variables (epidemiological, clinical, procedure-related, and outcome) in patients who underwent reconstruction using an arteriovenous loop utilizing a single-stage or two-stage procedure. Results:The injuries were mostly traumatic (80%). The success rate of the single-stage procedure was 75%, and 17% for the two-stage procedure. The rate of preservation for the injured limb was 44%. Conclusion:This study reinforces the more recent understanding that the indication for single-stage or two-stage reconstruction should be individualized; our findings favor the single-stage reconstruction. This technique should be used in selected cases, as a last reconstructive alternative before amputation, and further studies are necessary to confirm its safety and efficacy in our practice. Level of Evidence IV; Case series. Objetivo:Analisar dez casos consecutivos de alças vasculares microcirúrgicas realizadas para reconstrução de feridas complexas no período de março de 2011 a maio de 2012. Métodos:Estudo de observação, analítico do tipo coorte, realizado pelo Grupo de Mão e Microcirurgia do Instituto de Ortopedia e Traumatologia do HC-FMUSP. Foram incluídos, prospectivamente e de maneira consecutiva, os pacientes candidatos à reconstrução microcirúrgica como última alternativa à amputação do membro, com comprovada ausência de vasos receptores adequados para anastomose microcirúrgica primária. Foram analisadas 14 variáveis (epidemiológicas, clínicas, relacionadas ao procedimento e resultados) nos pacientes submetidos à reconstrução com alça em tempo único e em dois tempos. Resultados:As lesões foram de etiologia traumática em sua maioria (80%). A taxa de sucesso do procedimento em tempo único foi de 75%, e em dois tempos de 17%. A taxa de manutenção do membro lesado foi de 44%. Conclusão:Este estudo reforça o entendimento mais recente de que a indicação de reconstrução em um ou dois tempos deve ser individualizada, e nossos resultados favorecem a reconstrução em tempo único. A técnica deve ser usada em casos selecionados, como última opção reconstrutiva à amputação, sendo necessários mais estudos para atestar sua segurança e eficácia em nosso meio. Nível de Evidência IV; Série de casos.

journal_name

Acta Ortop Bras

authors

Silva GB,Veronesi BA,Torres LR,Imaguchi RB,Cho AB,Nakamoto HA

doi

10.1590/1413-785220182602187220

subject

Has Abstract

pub_date

2018-03-01 00:00:00

pages

127-130

issue

2

eissn

1413-7852

issn

1809-4406

journal_volume

26

pub_type

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