[Chondrocalcinosis and diabetes mellitus. The clinico-statistical data]

Chondrocalcinosis is an important, common, age-related joint disease. Its characteristic is the deposit of calcium pyrophosphate dihydrate crystals in hyaline and fibrous cartilages. Occasionally, it is a familial disorder; more often, it is a sporadic disease of adults sometimes in association with hormonal and metabolic disorders. The relationship between CC and diabetes mellitus (DM) is disputed. In this study the prevalence of radiographic CC (knee and/or wrist) in 184 DM patients was evaluated. For comparison two matched groups without DM were studied: i) 184 consecutive unselected out-patients seem in Rheumatology Department of Ancona University with X-rays of knee and/or wrist; ii) 184 consecutive unselected outpatients observed in a Radiology Department with X-rays of knee and/or wrist. No statistical difference was found between the prevalence of CC in DM patients vs controls. Moreover 113 CC patients were studied. No statistical difference was observed between the prevalence of DM and impaired glucose tolerance in CC patients vs controls. These results may suggest that there is no relationship between CC and diabetes mellitus, as other studies have recently shown.