Osteoarthritis shares certain clinical features with psoriatic arthritis such as its tendency to affect multiple distal joints in an asymmetric pattern .
Involvement of the spinal joints is more suggestive of psoriatic arthritis than rheumatoid arthritis .
Osteoarthritis shares certain clinical features with psoriatic arthritis such as arthritis ' tendency to affect multiple distal joints in an asymmetric pattern .
Involvement of the spinal joints is more suggestive of psoriatic arthritis than rheumatoid arthritis .