Seronegative spondyloarthritis (SpA) is a group of rheumatic diseases Foot involvement of the SpA is common and enthesitis, erosive changes or ankylosis are the frequent lesions. The functional status of the SpA patients are usually evaluated globally.The aim of this study is to assess specifically the foot -related functional limitations of the SpA patients.

SpA patients who had foot pain at least for 4 weeks and those having bilateral anteroposterior and lateral feet x-rays will be included into the study. Foot x-rays will be evaluated by a radiologist by using the spondyloarthropathy tarsal radiographic index (SpA-TRI). The foot related functional status of the patients will be determined by the Turkish version of the Foot and Ankle Outcome Score (FAOS).

Inclusion Criteria:

• SpA patients who had foot pain at least for 4 weeks
• Those having bilateral anteroposterior and lateral feet x-rays will be included into the study

Exclusion Criteria:

• Patients who had flatfoot
• Previous foot surgery
• Any other disorder unrelated to the SpA will be excluded

patients with SpA and foot pain