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Year : 2016  |  Volume : 7  |  Issue : 2  |  Page : 91-95

Clinical and radiological findings in psoriatic arthritis: A hospital-based cross-sectional study

1 Department of Dermatology, Government Medical College, Thrissur, Kerala, India
2 Department of Medicine, Government Medical College, Thrissur, Kerala, India

Correspondence Address:
Neelakandhan Asokan
Prashanthi, KRA-11, PO - Kanattukara, Thrissur - 680 011, Kerala
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0975-9727.185002

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Context: There is limited published data on psoriatic arthritis (PsA) from India. Aims: To analyze the clinical and radiological findings of patients with PsA attending a tertiary care teaching hospital. Settings and Design: Cross-sectional descriptive study in a dermatology department of a tertiary care teaching hospital over a 1- year period. Materials and Methods: Demographic profile, clinical profile, and radiological changes of patients with PsA were studied. Statistical Analysis Used: Qualitative data were analyzed using means, percentages, and chi-square test and quantitative data were analyzed using Spearman's rank correlation and Z-test. Results: There were 53 patients (35 males). The most common age group was 40-59 years. The age of onset was earlier among females. The most common type of PsA was asymmetric oligoarthritis (35/53; 66%). Overlapping types were seen in 19 (35.8%) patients. The knee was the most common joint involved (21/53; 39.6%) followed by the distal interphalangeal (DIP) joint and shoulder joint (18/53 each; 34%). Enthesitis and dactylitis were present in 3 (6%) and 7 (13.2%) patients, respectively. Nails were affected in 47 (88.7%) patients; the most common finding was pitting of the nail plates. There was no correlation between clinical type of PsA and the severity of disease as assessed by Psoriasis Area and Severity Index (PASI) and body surface area of involvement (BSA). Twenty-five (47.2%) patients were either overweight or obese. A majority of the patients (41/53), particularly females (17/18), had central obesity. 34% of the patients had systemic hypertension (HT), diabetes mellitus, or both. The most common (24.5%) radiological change was marginal erosion of the phalanges. Conclusions: Asymmetric oligoarthritis was the most common clinical type of PsA. The knees, shoulders, and DIP joints were the more commonly affected joints. Severity of psoriasis was not associated with any particular type of PsA. A majority of patients, particularly females, had central obesity. The most common radiological finding was marginal erosion.

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