Ab0512 clinical and Radiological Features of Shoulder Involvement in Spondylarthritis

Abstract

Background:Peripheral joint involvement is frequent among patients with peripheral spondylarthritis (SA). However, the root joint involvement, such as hip involvement, has been described as being associated with axial spondylarthritis, while data for shoulder involvement are scarce. Cuff tendonitis and enthesitis are common features in the shoulder in patients with SA.Objectives:This study aimed to identify the prevalence of shoulder involvement in SA patients and describe its clinical and radiological features.Methods:We conducted a retrospective study including SA patients, all fulfilling the assessment of Spondyloarthritis International Society (ASAS) criteria.For all patients, we collected the following data: Age, the clinical presentation of SA, the inflammatory biomarkers C-reactive protein (CRP), and the disease activity assessed by the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI).Regarding shoulder involvement, we assessed the following items: tenderness, mobility, rotator cuff tests, as well as the results of X-ray and Ultrasound examination (US).Results:We included one hundred and thirty-one SA patients (mean age 39,77 years). Among them, sixty-two percent were male. Ten percent of patients were smokers, 46,6% had the peripheral beginning of the disease. Fourteen patients complained of shoulder pain. The majority of them were male.X-rays showed no abnormalities (n=2), while a destructive form was noted in (n=7).Rotator cuff rupture or enthesopathy was also revealed by the reduction of subacromial space (n=5), condensation of the greater tuberosity (n=3), crooked aspect of the acromion (n=2), and Moloney’s line disruption(n=1).US showed no abnormalities (n=1), supraspinatus tendinopathy (n=5), supraspinatus transfixing tear (n=1), infraspinatus tendinopathy (n=2), supraspinatus enthesopathy (n=2), infraspinatus enthesopathy (n=1), moderate synovitis (n=1), subacromiodeltoid bursitis (n=1).Shoulder involvement was correlated significantly with the peripheral beginning of SA (P < 0.05). There were no significant differences in gender, tobacco use, CRP value, and the disease activity between the two groups (P > 0.05).Conclusion:The shoulder involvement was rare in our study. It is characterized by cuff tendonitis and enthesitis, especially in supraspinatus insertion. However, the glenohumeral synovitis was uncommon in our series, even in the peripheral form of the disease.References:[1]Hip and Shoulder Involvement and Their Management in Axial Spondyloarthritis: a Current Review Clementina López-Medina1,2,3,4 & M. Carmen Castro-Villegas1,2,3 & Eduardo Collantes-Estévez1,2,3, 23 July 2020.Acknowledgements:I would like to thank all the authors listed above, for they helped me make writing my first abstract less harder.Disclosure of Interests:None declared.