Rhinoplasty when prone to keloid scars?

I've been wanting to get / have been researching rhinoplasty for years - my questions are; 1. What do I need to have done 2. What type of surgery can achieve this (open / closed) 3. I had a keloid surgically removed from my ear twice from a piercing. (Grew both times whilst I was pregnant) 2nd surgery was successful it hasn't come back - does this effect what type of surgery I should have? Nb. I had tummy tuck/Breast Aug/tattoos/other piercings without keloid. 1 other raised scar on arm