What are the chances of developing keloids after two syringes of Sculptra?

I had two syringes of sculptra in the temple, cheek, and lower jaw area today. The aftercare pamphlet stated: people developing keloids and with autoimmune disease should not use sculptra. I develop keloids after operations and get steroid injections to get rid of them. How can sculptra make keloids? Are the keloids in form of nodules formed under the skin which I have read about? how can these nodules and/or keloids be treated? If one has crohns disease how can sculptra affect it? Thank you