Spinal Mobility in Axial Sponsdyloarthritis: A Cross-Sectional Clinical Study.
OBJECTIVE: Research concerning spinal mobility in axial spondyloarthritis (axSpA) has focused on ankylosing spondylitis (AS), and data on the clinical diagnosis of undifferentiated spondyloarthritis (USpA) are limited. The objective was to study differences in spinal mobility between axSpA subgroups AS and USpA, including gender differences. METHODS: A total of 183 patients with axSpA from a rhe