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What Is a Bilobed Flap?

A bilobed flap is a surgical technique used in eyelid reconstruction to repair skin defects, often after tumor removal or trauma. It involves creating two connected flaps of nearby skin that can be rotated to cover the affected area. This design allows for even tension and a natural appearance. The method helps preserve eyelid shape, movement, and function after surgery.

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What Is a Bilobed Flap?

A bilobed flap is a surgical technique used in eyelid reconstruction to repair skin defects, often after tumor removal or trauma. It involves creating two connected flaps of nearby skin that can be rotated to cover the affected area. This design allows for even tension and a natural appearance. The method helps preserve eyelid shape, movement, and function after surgery.

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When Is a Bilobed Flap Used?

A bilobed flap is used when direct closure of a wound would cause too much tension or distortion. It is commonly applied to the lower eyelid, inner corner, or areas where skin flexibility is limited. Surgeons choose this method to achieve smooth healing with minimal scarring. It's especially useful for medium-sized defects where traditional flaps or grafts are less effective.

How Does a Bilobed Flap Work?

The surgeon creates two semicircular flaps adjacent to the defect. The first flap rotates into the wound to fill the missing tissue, and the second flap closes the donor site. This rotation distributes skin tension over a wider area, improving cosmetic results. The technique maintains local blood supply, which supports faster healing and better tissue survival.

How Is a Bilobed Flap Performed?

The procedure involves:

  • Marking the flap design based on the size and shape of the eyelid defect
  • Carefully cutting and lifting two connected flaps of skin
  • Rotating the first flap into the defect and the second into the donor site
  • Securing both flaps with fine sutures to align tissue smoothly

What Are the Benefits of a Bilobed Flap?

This flap technique allows for precise reconstruction with good color and texture match. It preserves eyelid contour and movement while reducing scarring. Because the skin comes from nearby tissue, the result looks more natural than with grafts taken from other body areas. Patients often experience good functional and cosmetic outcomes.

When to Follow Up With a Doctor

If you recently had eyelid reconstruction using a bilobed flap, scheduled follow-up visits are important. These appointments help your surgeon monitor healing and flap position. Report any swelling, redness, or discomfort right away. Early attention helps prevent complications. Ongoing care supports the best surgical outcome.

Frequently Asked Questions

How long does swelling last after a bilobed flap?

Swelling is often most noticeable in the first few days and then gradually improves over 1?2 weeks. Bruising can linger longer, especially around the lower eyelid. Keeping the head elevated and using cold compresses early can help. Healing speed varies based on skin type and the size of the repair.

Will a bilobed flap leave a visible scar?

Scars are expected, but eyelid skin often heals with fine lines that fade over time. Early redness is common and usually softens over weeks to months. Sun protection helps prevent darkening in the healing scar. If thickening or pulling develops, a surgeon can suggest next steps.

What problems should be watched for after flap surgery?

Increasing redness, warmth, or pus-like drainage can point to infection. Severe pain, darkening skin, or sudden swelling can signal blood-flow trouble to the flap and needs quick review. A pulling sensation that changes eyelid position should also be reported. Early attention helps protect both healing and eyelid function.

How should the incision be cared for at home?

Clean the area exactly as directed, usually with gentle wiping and a prescribed ointment. Keep makeup and skincare products away from the incision until cleared by the surgeon. Avoid heavy lifting and bending if advised, since that can worsen swelling. Attend follow-ups so suture removal and healing checks stay on track.

References

1. Bilobed Flap. StatPearls, NCBI Bookshelf. https://www.ncbi.nlm.nih.gov/books/ (search: "Bilobed Flap StatPearls"). Accessed January 16, 2026.

2. Eyelid Reconstruction. EyeWiki. https://eyewiki.org/Eyelid_Reconstruction. Accessed January 16, 2026.

3. Oculofacial Plastic and Reconstructive Surgery Overview. American Academy of Ophthalmology. https://www.aao.org/eye-health/treatments/oculofacial-plastic-surgery. Accessed January 16, 2026.

4. Mohs Surgery and Reconstruction Basics. American College of Mohs Surgery. https://www.mohscollege.org/for-patients/about-mohs-surgery. Accessed January 16, 2026.

5. Local Flaps in Facial Reconstruction (Overview). Cleveland Clinic. https://my.clevelandclinic.org/health/treatments/ (search: "local flap reconstruction"). Accessed January 16, 2026.

6. Bilobed Flap Design and Outcomes Review. PubMed. https://pubmed.ncbi.nlm.nih.gov/ (search: "bilobed flap design outcomes facial reconstruction"). Accessed January 16, 2026.