Spondyloarthritis & psoriatic arthritis
Costovertebral joint involvement in patients with axial spondyloarthritis
Authors' conclusion
Costovertebral joint involvement was common in patients with axSpA, even in the absence of radiographic damage.
Study context
- Population
- Patients with axial spondyloarthritis (axSpA) from the Incheon Saint Mary's axSpA observational cohort who underwent whole spine low-dose CT
- Participants
- 150 patients
- Outcome
- Costovertebral joint abnormalities (erosion, syndesmophyte, ankylosis; score 0-48)
Methodological detailsobservational cohort, whole spine low-dose CT, two independent readers
- Observational cohort
- Whole spine low-dose CT
- Two independent readers
Main finding
As reported in the abstract
Costovertebral joint abnormalities
Reader 1: patients with costovertebral joint abnormalities
74
49%
Reader 2: patients with costovertebral joint abnormalities
108
72%
Observational data: associations, not effects.
Further findings
Interobserver reliability (ICC)
- Erosion score ICC
- 0.85
- Syndesmophyte score ICC
- 0.77
- Ankylosis score ICC
- 0.93
- Total abnormality score ICC
- 0.95
Associations with total abnormality score
- For both readers, correlated with age, symptom duration, Ankylosing Spondylitis Disease Activity Score (ASDAS), Bath AS functional index (BASFI), CT syndesmophyte score (CTSS) and number of bridging spines
- Multivariate: age, ASDAS and CTSS independently associated in both readers
Ankylosed costovertebral joint in patients without radiographic syndesmophytes (n=62)
- Reader 1
- 10.2%
- Reader 2
- 17.0%
Ankylosed costovertebral joint in patients without radiographic sacroiliitis (n=29)
- Reader 1
- 10.3%
- Reader 2
- 17.2%
Original publication
Costovertebral joint involvement in patients with axial spondyloarthritis. Joint Bone Spine. Published 15 February 2023. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →