Related Experiment Video
Updated: Jun 5, 2026

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An Experimental Human DIEP Flap Model to Investigate Preservation Strategies for Vascularized Composite Allografts and Free Flaps
Published on: December 5, 2025
Perforator propeller flaps for sacral and ischial soft tissue reconstruction.
Pradeoth M Korambayil1, Kv Allalasundaram, Tm Balakrishnan
1Department of Plastic Reconstructive and Aesthetic Surgery, Madras Medical College, Chennai.
Summary
Perforator-based propeller flaps offer a viable solution for reconstructing sacral and ischial defects. These highly vascularized flaps provide excellent coverage with minimal donor site morbidity.
Area of Science:
- Plastic Surgery
- Reconstructive Surgery
- Microsurgery
Background:
- Sacral and ischial pressure sores present significant reconstructive challenges.
- Perforator-based flaps offer a promising alternative to traditional reconstructive methods.
- These flaps utilize perforators from the gluteus maximus muscle for rich vascularization.
Purpose of the Study:
- To evaluate the efficacy and outcomes of perforator-based propeller flaps in reconstructing sacral and ischial defects.
- To assess the complication rates associated with these reconstructive techniques.
Main Methods:
- Retrospective review of 11 patients undergoing reconstruction for sacral pressure sores, ischial pressure sores, or pilonidal sinus.
- Flap design based on superior gluteal, parasacral, or inferior gluteal artery perforators.
- Propeller flap technique utilized for soft tissue coverage.
Main Results:
- Six sacral pressure sores reconstructed with superior gluteal and parasacral artery perforator flaps; one flap loss (16.7%).
- Three ischial pressure sores reconstructed with inferior gluteal artery perforator flaps; one flap with infection and dehiscence (33.3%).
- Two pilonidal sinus cases reconstructed with parasacral perforator flaps; both survived without complications (0%).
Conclusions:
- Perforator-based propeller flaps are effective and suitable for soft tissue reconstruction in the sacral and ischial regions.
- These flaps demonstrate minimal donor site morbidity and preserve gluteus maximus muscle function.
- Further investigation may be warranted to optimize outcomes and minimize complications in specific patient populations.
