Factors Affecting Anastomosis Failure in Microvascular Fibula Flap Reconstruction of the Maxillofacial Region: a Systematic Review and Meta-analysis

Overview

Journal J Korean Assoc Oral Maxillofac Surg

Date 2025 Feb 28

PMID 40017069

Authors

Elahe Tahmasebi

Samira Hajisadeghi

Shervin Shafiei

Hamidreza Moslemi

Reza Tabrizi

Mohammad Hosein Kalantar Motamedi

Affiliations

Soon will be listed here.

Abstract

This systematic review and meta-analysis evaluates the contributory factors and failure rates in anastomosis during microvascular fibula flap reconstruction in maxillomandibular regions. A comprehensive search strategy was employed across databases including MEDLINE, Web of Science, EMBASE, Scopus, Cochrane's CENTRAL, as well as grey literature sources, and manual searches of noteworthy journals, covering studies from inception up to April 2023. The inclusion criteria targeted retrospective or prospective cohort and clinical studies that investigated functional and dental rehabilitation outcomes in human subjects undergoing maxillofacial reconstruction using microvascular fibula flaps. Exclusion criteria encompassed case-control studies, alternative reconstruction method research, and animal-based investigations. The study's findings revealed a cumulative vascular failure rate of 6%. Subsequent analysis delineated the primary causes of this failure, attributing 3% to venous thrombosis, 1% to arterial thrombosis, and less than 1% to blood vessel compression due to hematoma. However, notable heterogeneity across the studies indicates substantial variability in vascular failure rates reported. These results of our review and meta-analysis underscore the intricate factors impacting anastomosis success, such as anastomosis technique, recipient vessel quality, the choice between couplers.

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