Related Experiment Video
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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
289
Peripheral Pruning: A Safe Approach to Thinning Extra-Large Anterolateral Thigh Flaps.
Annals of Plastic Surgery
|March 20, 2018
Summary
Thinning extra-large anterolateral thigh (ALT) flaps is safe using peripheral pruning. This technique reliably achieves optimal contouring without increasing flap necrosis risk.
Area of Science:
- Plastic Surgery
- Microsurgery
- Reconstructive Surgery
Background:
- Anterolateral thigh (ALT) flaps are used for contouring.
- Thinning large ALT flaps carries risks of vascular compromise and necrosis.
- Extra-large ALT flaps (>240 cm) present unique challenges for safe thinning.
Purpose of the Study:
- To demonstrate a safe and reliable method for thinning extra-large ALT flaps.
- To evaluate the safety and efficacy of peripheral pruning for ALT flap thinning.
- To reduce the risk of flap necrosis in large ALT flap reconstructions.
Main Methods:
- Retrospective review of 53 consecutive ALT flaps.
- Eighteen flaps underwent primary thinning by sharp excision of sub-Scarpa's fat peripherally.
- A central fat cuff was preserved to protect the perforator.
Main Results:
- No partial flap necrosis occurred in the 18 thinned flaps.
- Ten thinned flaps (55%) were extra-large (>240 cm).
- One total flap loss occurred due to unrelated hematoma in a patient on therapeutic heparin.
Conclusions:
- Peripheral pruning is a safe and reliable technique for thinning extra-large ALT flaps.
- This method does not increase the risk of flap necrosis.
- This study is the first to demonstrate this technique in the Western population.
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