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ANATOMICAL STUDY OF SUPERFICIAL CIRCUMFLEX ILIAC VESSELS ON 256–SLICES CT ANGIOGRAPHY (CTA) AND CLINICAL APPLICATION IN RECONSTRUCTION OF HAND SOFT TISSUE DEFECTS
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Abstract
Background: The free superficial circumflex iliac artery perforator flap (SCIP flap) is an ideal thin flap for reconstructing hand soft tissue defects. However, its short pedicle, small vessel diameter, and anatomical variations complicate dissection and microsurgical anastomosis. A systematic study of its anatomy and clinical application is necessary. Methods: A prospective, non-comparative clinical study was conducted on 63 patients with 64 free SCIP flaps. Anatomical features of the superficial circumflex iliac vessels were evaluated using 256-slice CT angiography on 126 inguinal regions, from November 2022 to September 2025 at the Department of Maxillofacial and Plastic Surgery, Viet Duc Hospital. Results: The superficial circumflex iliac artery and vein were present in 100% of studied regions, with mean diameters of 1.4 ± 0.2 mm and 1.8 ± 0.4 mm. Each superficial and deep branch provided 1–3 perforators to the skin through the superficial fascia. The 64 SCIP flaps measured on average 19 ± 7 × 7.6 ± 1.6 cm, with a thickness of 2.4 ± 0.4 mm. Flaps were applied as chimeric, tailoring, supercharging flap and 62 flaps survived completely, 2 experienced necrosis. Conclusion: The SCIP flap is a reliable, thin, and versatile flap, providing favorable aesthetic outcomes for hand soft tissue reconstruction.
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Keywords
Superficial circumflex iliac artery perforator flap, hand soft tissue defects
References
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