gout arthritis can it keep hand from healing

Im a 45 year old women that has been told for years that i have artritis, rhuemitoid, osteo, and gout. In the last year ive had several attacks of flare ups in hands and feet and have nodules on finger joints and ankle. Since then recently I banged my baby pinky in a car door 5 weeks ago and my life became hell, The finger dislocated at first joint and they put slint until i could see hand specialist. he put a fiberglass cast on finger to hold bone to joint but it was completely uncomfortable ( take that back very painful) went to emerg several times and family doc and was told pretty much suck it up princess it just a finger its going to hurt. so i stay for 10 days like this until my finger started leaking puss it was like it exploded. i went back to emerg and they finally cut cast off and my finger was a mess, hard to describe except it exploded and was severily infected, was put on antibiotic and have had to go for dressing change everyday for the last 8 days. finger was about 4 times it size and has gone down to about twice the size and infection is clearing. now they want to put metal pin in middle of finger to fix the problem but if they say that this happened because of underlined conditions of my arthritis what makes them think it will be ok to put pin in it.
so my question is can arthritis stop you from healing properly