Efficacy of Superficial Femoral Artery As a Recipient in Free Flap Reconstruction Around the Knee: Four Case Reports and a Literature Review

Overview

Journal JPRAS Open

Specialty General Surgery

Date 2024 Sep 23

PMID 39308742

Authors

Mitsutoshi Ota

Makoto Motomiya

Naoya Watanabe

Kazuya Kitaguchi

Norimasa Iwasaki

Affiliations

Soon will be listed here.

Abstract

Purpose: Reconstructing soft tissue defects around the knee with free flaps presents challenges in recipient vessel selection. Although the superficial femoral artery (SFA) offers exposure ease and anatomical stability, concerns arise regarding its distance from the defect site, difficulty in performing anastomosis and potential peripheral ischaemia. This study aimed to reassess the suitability of SFA as a recipient vessel for knee reconstructions by examining our cases and those from previous reports.

Methods: We reviewed four cases of knee soft tissue defects reconstructed with free flaps using the SFA, detailing surgical techniques and outcomes. Additionally, a comprehensive literature search was conducted for articles on using SFA as a recipient vessel for knee free flaps, using PubMed, Web of Science and EBSCOhost databases.

Results: In all four cases, latissimus dorsi (LD) flaps were used, with end-to-side anastomosis performed using a large slit-shaped arteriotomy. All flaps demonstrated successful survival without complications. Our analysis included 85 cases, comprising four of our cases and 81 cases from 16 articles. Sarcoma resection was the most common aetiology, followed by total knee prosthesis-related defects, trauma and osteomyelitis. Complete flap necrosis occurred in 5% of cases. The LD flap was the predominant choice, alongside other long-pedicle flaps. The SFA provided coverage for all knee areas except the distal lateral patellar region.

Conclusion: Despite the limited evidence, the SFA appears to be a reliable recipient vessel for knee soft tissue reconstruction. Comprehensive understanding of the characteristics of the SFA and flaps used enhances the safety and efficacy of soft tissue defect reconstruction around the knee.

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