Medial Sural Artery Perforator Flap Techniques in Soft Tissue Reconstruction
Summary
The medial sural artery perforator (MSAP) flap has emerged as a versatile option for reconstructing soft tissue defects across a range of anatomical sites. Harvested from the posterior calf, this thin fasciocutaneous flap is based on one or more perforators arising from the medial sural artery. Its favourable characteristics include a long vascular pedicle, minimal bulk, and low donor-site morbidity, making it particularly suitable for head and neck defects, extremity wounds and moderate-sized contour deficiencies. Preoperative mapping of perforators through handheld Doppler or computed tomography angiography enhances reliability of flap design, while intraoperative techniques such as suprafascial dissection and chimeric configurations allow tailoring of skin paddle, fascia and muscle segments to complex three-dimensional defects. Comparative studies have demonstrated equivalent flap survival rates to more established options, with superior patient-reported satisfaction regarding cosmesis and functional outcomes at the donor site. Ongoing refinements in perforator identification, microsurgical instruments and flap thinning protocols continue to expand the applicability of the MSAP flap, reinforcing its role as an important component of the reconstructive surgeon’s armamentarium.
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Medial Sural Artery Perforator Flap Techniques in Soft Tissue Reconstruction publication trend
The graph below shows the total number of articles in medial sural artery perforator flap techniques in soft tissue reconstruction across all publications each year (not limited to Nature Index journals).
Technical terms
Perforator flap: A skin and subcutaneous tissue flap nourished by a single artery perforating through deep structures.
Pedicle: The bundled artery and vein that supply blood to a free flap.
Fasciocutaneous flap: A flap comprising skin, fatty tissue and the underlying fascia, used to cover soft tissue defects.
Donor-site morbidity: Adverse functional or aesthetic outcomes at the harvest site following flap removal.
Computed tomography angiography: An imaging modality that visualises vascular anatomy to guide perforator identification.
References
- Expanding the Armamentarium of Donor Sites in Microvascular Head and Neck Reconstruction. Journal of Clinical Medicine (2024).
- Medial sural artery perforator free flap for small- to medium-sized defects in head and neck reconstruction: a suitable replacement for radial forearm free flap. Maxillofacial Plastic and Reconstructive Surgery (2025).
- The Medial Sural Artery Perforator Flap versus Other Free Flaps in Head and Neck Reconstruction: A Systematic Review. Archives of Plastic Surgery (2023).
- Reconstruction of Upper and Lower Limb Defects with Medial Sural Artery Perforator Flaps: Is Aesthetics Worth the Effort? A Retrospective Analysis. The Surgery Journal (2023).
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