Patterns of spinal new bone formation in patients with axial spondyloarthritis, psoriatic arthritis, rheumatoid arthritis and healthy controls: a low-dose CT study.

January 20, 2026

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Key Points

This research aims to identify and compare patterns of new bone formation in axial spondyloarthritis, psoriatic arthritis, rheumatoid arthritis, and healthy controls.
Conducted low-dose CT imaging to assess new bone formation patterns
Compared findings across axial spondyloarthritis, psoriatic arthritis, rheumatoid arthritis, and healthy controls
Analyzed locations and types of bone formations such as syndesmophytes and osteophytes
Axial spondyloarthritis showed frequent marginal syndesmophytes, especially in the thoracic spine.
Other groups primarily exhibited osteophytes with no unique pattern of new bone formation.
No consistent new bone formation patterns distinguished the groups comprehensively.

Low-dose CT identifies distinct patterns of new bone formation in axial spondyloarthritis, suggesting unique disease characteristics.

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Willesen et al. (2026) studied this question.

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