Limited added value of whole spine MRI in spondyloarthritis for disease activity assessment.

The spinal MRI had limited added value to the SIJ MRI in SpA, when performed to assess disease activity, limiting its value in routine practice unless clinically indicated. Key Points • Spine MRI adds limited value to SIJs in SpA, when performed for disease activity assessment. • SpA disease activity assessment may be restricted to sacroiliac joint MRI, unless clinically indicated.