What are the odds of keloid after surgery by a plastic surgeon?

Depends on your gene: If you usually make keloids after an injury/wound/surgery then it may be as high as 100%.

No difference: We really don't know what causes keloids, though they are more common in people with dark skin. Plastic surgeons don't have any magic--if a doctor knows what he/she is doing and accurately approximates the skin edges without strangulating them, a good scar should result. Once the wound is sutured, how it heals is out of the surgeon's control (plastic or not.).

Keloid: Keloids may form in anyone. They are more likely to form in certain patient populations (e.g., african american, asian, latino). If you have a history of keloids or have any signs or symptoms of keloid formation, be sure to inform your plastic surgeon immediately. There are treatments available. In general, the earlier these treatments are initiated, the more successful they are.

Patient dependent : The likelihood of developing a keloid is dependent more on patient-specific factors than the technical superiority of a given surgeon. In general a personal history of prior keloids, dark skin tone, ethnicity and younger age will increase the chances of a keloid developing. That being said, if you are at risk, a plastic surgeon will certainly be able to do things to minimize that chance.

Depends: If you are not a keloid former then the chance is extremely low. If you are a keloid former then it depends on location, size and reason of incision. Ask your surgeon.

Same: Same as with any other surgeon. Depends on the patient healing. For best results, see a facial plastic surgeon.