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Updated: Aug 16, 2026
An Experimental Human DIEP Flap Model to Investigate Preservation Strategies for Vascularized Composite Allografts and Free Flaps
Published on: December 5, 2025
[Perforator-based flap for repair of gluteal-sacral defects]
1Department of Microsurgery, Hainan Provincial Hospital, Haikou Hainan, 570311, P. R. China. chaiyimin@sina.com
Objective:
To investigate the operative technique and clinical effect of perforator-based flap for repair of gluteal-sacral skin defects.
Methods:
A new perforator-based flap derived from the gluteal, parasacral and the lumbar arteries was used to repair skin defects of gluteal-sacral region caused by trauma or pressure sore. The flap areas ranged from 6 cm x 5 cm to 19 cm x 11 cm, the diameter of perforating vessel ranged from 1.3 to 2.1 mm, the length of free perforating vessel pedicle ranged from 2.5 to 4.5 cm.
Results:
All the flaps survived and the wound gained primary healing. All the patients were followed up for 6 to 24 months. The colour and texture of the flaps were excellent, the configuration was satisfactory and there was no ulcer recurrence.
Conclusion:
This new type of flap is characterized by delicate design, easy dissection, reliable blood supply, no sacrifice of the underlying muscle and no requirement skin graft for donor site closure. It is an optimal method in repairing soft tissue defects of the gluteal-sacral region.
