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Published in: BMC Musculoskeletal Disorders 1/2024

Open Access 01-12-2024 | Osteomyelitis | Research

Clinical outcomes of perforator-based propeller flaps versus free flaps in soft tissue reconstruction for lower leg and foot trauma: a retrospective single-centre comparative study

Authors: Mitsutoshi Ota, Makoto Motomiya, Naoya Watanabe, Kohei Shimoda, Norimasa Iwasaki

Published in: BMC Musculoskeletal Disorders | Issue 1/2024

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Abstract

Background

The efficacy and safety of perforator-based propeller flaps (PPF) versus free flaps (FF) in traumatic lower leg and foot reconstructions are debated. PPFs are perceived as simpler due to advantages like avoiding microsurgery, but concerns about complications, such as flap congestion and necrosis, persist. This study aimed to compare outcomes of PPF and FF in trauma-related distal lower extremity soft tissue reconstruction.

Methods

We retrospectively studied 38 flaps in 33 patients who underwent lower leg and foot soft tissue reconstruction due to trauma at our hospital from 2015 until 2022. Flap-related outcomes and complications were compared between the PPF group (18 flaps in 15 patients) and the FF group (20 flaps in 18 patients). These included complete and partial flap necrosis, venous congestion, delayed osteomyelitis, and the coverage failure rate, defined as the need for secondary flaps due to flap necrosis.

Results

The coverage failure rate was 22% in the PPF group and 5% in the FF group, with complete necrosis observed in 11% of the PPF group and 5% of the FF group, and partial necrosis in 39% of the PPF group and 10% of the FF group, indicating no significant difference between the two groups. However, venous congestion was significantly higher in 72% of the PPF group compared to 10% of the FF group. Four PPFs and one FF required FF reconstruction due to implant/fracture exposure from necrosis. Additionally, four PPFs developed delayed osteomyelitis post-healing, requiring reconstruction using free vascularized bone graft in three out of four cases.

Conclusions

Flap necrosis in traumatic lower-leg defects can lead to reconstructive failure, exposing implants or fractures and potentially causing catastrophic outcomes like osteomyelitis, jeopardizing limb salvage. Surgeons should be cautious about deeming PPFs as straightforward and microsurgery-free procedures, given the increased complication rates compared to FFs in traumatic reconstruction.

Data access statement

The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.
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Metadata
Title
Clinical outcomes of perforator-based propeller flaps versus free flaps in soft tissue reconstruction for lower leg and foot trauma: a retrospective single-centre comparative study
Authors
Mitsutoshi Ota
Makoto Motomiya
Naoya Watanabe
Kohei Shimoda
Norimasa Iwasaki
Publication date
01-12-2024
Publisher
BioMed Central
Keyword
Osteomyelitis
Published in
BMC Musculoskeletal Disorders / Issue 1/2024
Electronic ISSN: 1471-2474
DOI
https://doi.org/10.1186/s12891-024-07433-x

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