Are syndesmophytes most prevalent in the lumbar or in the cervical spine in patients with ankylosing spondylitis and do they develop in a specific direction?

Both structural damage and inflammation of the spine contribute to impairment of spinal mobility in patients with ankylosing spondylitis

(2010) P. Machado et al.   ANNALS OF THE RHEUMATIC DISEASES

Determinants of Early Radiographic Progression in Ankylosing Spondylitis

(2010) P. ATAGUNDUZ et al.   JOURNAL OF RHEUMATOLOGY

Ankylosing Spondylitis: Patterns of Radiographic Involvement—A Re-examination of Accepted Principles in a Cohort of 769 Patients

(2010) Jennifer H. Jang et al.   RADIOLOGY

Development of a radiographic scoring tool for ankylosing spondylitis only based on bone formation: Addition of the thoracic spine improves sensitivity to change

(2009) X. Baraliakos et al.   ARTHRITIS AND RHEUMATISM

The Natural Course of Radiographic Progression in Ankylosing Spondylitis -- Evidence for Major Individual Variations in a Large Proportion of Patients

(2009) X. BARALIAKOS et al.   JOURNAL OF RHEUMATOLOGY

Physical function in ankylosing spondylitis is independently determined by both disease activity and radiographic damage of the spine

(2008) R Landewe et al.   ANNALS OF THE RHEUMATIC DISEASES