Prevalence of rheumatic conditions in patients with diabetes mellitus in a tertiary care hospital.

Musculoskeletal disorders are common in diabetic subjects. The pathophysiology of these disorders in diabetic patients is not obvious. It could be due to connective tissue disorders, glycosylated end products, vasculopathy, neuropathy or combinations. A wide range of musculoskeletal syndromes have been described in association with diabetes, namely diabetic cheiro-arthropathy, adhesive capsulitis of shoulder, carpal tunnel syndrome, Dupuytren's contracture, hyperostosis, osteo-arthritis, hyperuricaemia, etc. This study was undertaken to find out the prevalence of these conditions in diabetes mellitus and to look for any associations with diabetic complications or therapy. A tertiary care centre-based cross-sectional study was carried out among 100 consecutive diabetic patients (WHO criteria) attending medicine department who were enrolled. The study was done at Calcutta National Medical College and Hospital, Kolkata, from March 2008 to February 2009. The diagnoses of the rheumatic conditions were made by unbiased clinical observations on the basis of standardised case definitions or criteria. Limited joint mobility (29%), adhesive capsulitis (18%), and osteo-arthritis of knee (27%) or hand (17%) were the most common rheumatic conditions in diabetics. Trigger finger (flexor tenosynovitis) and carpal tunnel syndrome were also present in 7% and 5% cases of diabetics respectively. Although hyperuricaemia was present in 9%, clinical gout was present in only 4%. There was no clear association of these syndromes with diabetic renal disease or micro-albuminuria. Most of these conditions were noted in chronic long duration diabetic subjects.