A skin graft is a piece of skin transplanted onto a complex wound.
A skin flap includes skin plus deeper tissues, sometimes muscle, blood vessels, and bone.
Wound care specialists and reconstructive and plastic surgeons commonly perform skin transplants.
Skin grafts and flaps require a healthy, oxygenated wound bed to heal.
An improperly prepared transplant site
The poor circulatory health of the patient,
Radiation treatment, or other factors.