The Bottom Line

A rotation flap is a wound-closure technique where your surgeon cuts and pivots a curved section of nearby skin — like a clock hand swinging — to cover a hole left after removing a skin cancer or other lesion. The flap stays attached to its original blood supply, so it heals well and matches your skin tone and texture naturally. This approach is especially useful for medium to large wounds on the scalp, cheek, or back where pulling skin straight across would cause too much tension.

What Is a Rotation Flap?

When your skin cancer or lesion is removed, a wound is left behind. If the wound is too large to pull closed in a straight line, your surgeon has options — and one of the most reliable is the rotation flap. The idea is straightforward: a curved flap of skin next to the wound is partly freed from the underlying tissue and then rotated in an arc to swing over and cover the open area.

The critical feature is that the flap stays connected to its original base. This connection — called a pedicle — keeps the blood supply intact. Unlike a skin graft (which is completely cut free), a rotation flap brings its own blood vessels with it. That means it heals faster and with a lower risk of tissue loss.

When Is a Rotation Flap Used?

Your surgeon may recommend a rotation flap when:

  • The wound is too large to close directly without causing tightness or distortion
  • The nearby skin has enough looseness ("laxity") to swing across without tearing
  • The location benefits from matched skin — scalp, cheek, forehead, and lower leg are common sites
  • A skin graft would produce a poorer cosmetic or functional result

Rotation flaps are particularly well-suited for circular or triangular wounds on the scalp, where skin is relatively stiff, and for large cheek defects, where the arc of movement can recruit skin from the neck or temple region.

How the Circular Movement Works

Imagine the wound as a triangle at 12 o'clock on a clock face. The surgeon draws a curved incision — like a large C or a half-moon — starting at one corner of the wound and swinging out to 3 or 4 o'clock. The skin within that curved area is gently lifted off the layer below it (called the subcutaneous fat), keeping the base attached. When this flap is pivoted inward — rotated toward the wound — the arc of skin swings over and covers the triangle.

The donor area (where the flap came from) is usually closed directly with sutures, since the rotation creates slack in that zone. Sometimes a small triangular piece of skin called a Burow's triangle is removed from one side to let the flap rotate without bunching.

What to Expect During the Procedure

Rotation flaps are typically performed in the office or a minor surgery suite under local anesthesia:

  1. Numbing: The wound area and the flap design area are injected with local anesthetic (lidocaine with epinephrine). This takes effect within 5 to 10 minutes.
  2. Planning: Your surgeon marks the curved incision lines with a surgical marker before cutting.
  3. Incision and lifting: The curved flap is cut and gently lifted off the underlying tissue.
  4. Rotation: The flap is pivoted to cover the wound. The surgeon checks that it lies flat without puckering or tension.
  5. Suturing: Multiple layers of sutures close the wound. Deep (absorbable) sutures hold the tension; surface sutures close the skin edge precisely.

Procedure time varies by wound size — typically 45 minutes to 2 hours for the reconstruction portion after skin cancer removal.

Recovery and Aftercare

Healing from a rotation flap follows a predictable timeline:

  • Days 1–3: Keep the bandage clean and dry. Some bruising and swelling are normal — especially around the eyes if the flap is on the face. Elevate your head when resting to reduce swelling.
  • Days 3–14: Clean the wound daily with gentle soap and water. Apply petroleum jelly and a fresh bandage. Avoid picking at sutures or crusts.
  • Suture removal: Facial sutures typically come out at 5 to 7 days; scalp and body sutures at 10 to 14 days.
  • Weeks 2–6: Swelling, firmness, and mild pinkness are normal as the flap establishes its blood supply and the scar matures.
  • Months 3–12: Scars soften and fade. Most rotation flap scars become difficult to notice after a year, especially on the face. Hypertrophic scarring (raised, firm scars) occurs in 5–10% of cases and can be treated with silicone gel or steroid injections.

Infection risk is low — approximately 1 to 2% — but signs include increasing redness, warmth, and pus after the first 48 hours. Bleeding requiring intervention occurs in about 1 to 3% of cases.

When to See a Dermatologist

  • Any part of the flap turns dark purple or black (a sign of poor blood flow)
  • The wound edges separate or sutures pull through
  • Bleeding does not stop with 10 minutes of firm pressure
  • Swelling or redness increases sharply after the first two days
  • You develop fever above 101°F (38.3°C)
  • The scar becomes thick, raised, or itchy (may indicate hypertrophic scarring worth treating)

Frequently Asked Questions

Will the rotation flap leave a noticeable scar?

Rotation flaps do leave scars, but skilled surgeons plan the incision lines to follow the natural creases and curves of your skin. On the scalp, hair growth hides most of the scar. On the face, scars typically fade significantly within 6 to 12 months. Most patients find the cosmetic result far better than the alternative of a stretched, tight closure or a visible skin graft.

How does a rotation flap differ from an advancement flap?

An advancement flap slides straight forward from one direction; a rotation flap pivots in a circular arc. The choice depends on which direction provides the most available skin and which path of movement hides the scars best for your particular wound shape and location.

Is the procedure painful?

Local anesthesia keeps you comfortable during the procedure. Afterward, discomfort is usually mild to moderate and is well-managed with acetaminophen or ibuprofen. Most patients describe the post-operative experience as pressure or tightness rather than sharp pain.

What if I need this after Mohs surgery?

Rotation flaps are one of the most commonly used reconstruction methods after Mohs surgery, particularly for scalp, cheek, and forehead defects. Your Mohs surgeon may perform the reconstruction themselves or refer you to a reconstructive surgeon, depending on your situation.

References

  1. Singer AJ, Dagum AB. Current management of acute cutaneous wounds. N Engl J Med. 2008;359(10):1037-1046.
  2. Aarabi S, Longaker MT, Gurtner GC. Hypertrophic scar formation: new approaches to treatment. PLoS Med. 2007;4(8):e234.
  3. Connolly SM, et al. AAD/ACMS/ASDSA/ASMS appropriate use criteria. J Am Acad Dermatol. 2012;67(4):531-550.
  4. Mustoe TA, et al. Chronic wound healing: re-thinking the approach. Plast Reconstr Surg. 2006;117(7 Suppl):177S-188S.

Trusted Resources

Always consult a board-certified dermatologist for diagnosis and treatment recommendations specific to your skin and health history.