Date: Sunday, November 8, 2015
Session Type: ACR Poster Session A
Session Time: 9:00AM-11:00AM
Background/Purpose: To evaluate the role of oblique view images in the radiographic assessment of hand osteoarthritis (HOA).
Methods: 159 patients of our HOA cohort were included. X-ray images were analyzed according to the interphalangeal osteoarthritis radiographic simplified (iOARS) score (pa views) or examined with regard to radiographic alterations that could not be detected in pa images (oblique views). Spearman’s correlation was applied to examine the relationship of dorsal osteophytes (dOP) and radiographic features/severity of joint damage. Differences between groups were determined by Student’s t test.
Results: A total of 4770 joints were examined. Oblique views showed additional information in 12.98% oft the analyzed joints. dOPs seem to be the most important radiographic changes found in oblique view images and occured with a prevalence of 12.4% (n=158) in DIP, 8.2% (n=26) in CMC-I and 7.2% (n=92) in PIP joints. Further calcualtions revealed a subgroup of patients displaying dOP in the oblique views without any radiographic changes in the plain images (DIP: 10.1%, CMC-I: 8.2% and PIP: 7.2%).
Conclusion: Prevalence data on dOP in HOA are provided. Oblique view images allow us to detect a subgroup of patients with HOA displaying dOP without any radiographic alterations in plain view images.
To cite this abstract in AMA style:Staats K, Sunk IG, Schueller-Weidekamm C, Supp G, Niederreiter B, Stamm TA, Smolen JS, Bobacz K. Radiographic Assessment of Hand Osteoarthritis – the Role of Oblique View Images [abstract]. Arthritis Rheumatol. 2015; 67 (suppl 10). https://acrabstracts.org/abstract/radiographic-assessment-of-hand-osteoarthritis-the-role-of-oblique-view-images/. Accessed October 20, 2019.
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