Flaps

• A flap is a piece of tissue that is still attached to the body by a major artery and vein or at its base. This piece of tissue with its attached blood supply is used in reconstructive surgery by being set into a recipient site.
• They are divided into two types- Local flap and free flap
• Local (pedicled) flap: Tissue is freed and rotated or moved in some manner from an adjacent area to cover the defect, yet remains attached to the body at its base.

Free flap: Tissue from another area of the body is detached and transplanted to the recipient site and the blood supply is surgically reconnected to blood vessels adjacent to the wound.