What is the difference between psoriatic arthritis and spondyloarthrapathy? i'm hla b-27 positive

Almost the same: Many people with psoriatic arthritiw have back problems similar to classic ankylosing spondylitis. The meds used for these are the same and include sulfasalazine, methotrexate, biologics including humira, remicade, (infliximab) etc. Occasionally the arthritis goes into remission (stops) if the skin is cleared, but this isn't common. Nonsteroids such as indomethecin are quite helpful.