Prevalence of Knee Chondrocalcinosis in Hospital and Clinic Patients Aged 50 or Older*

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Abstract
The prevalence of chondrocalcinosis was studied in 574 hospital and clinic patients aged 50 or older who underwent X-ray examination of the knee. Chondrocalcinosis was found in 9.6% of all these patients, in 5% of the 50-64 age group, and in 14.6% of the 65-94 age group. The prevalence of knee chondrocalcinosis increased in stepwise fashion between the ages of 65-80. A review of the literature and of the data on a few patients over the age of 80 suggests the existence of higher prevalence among persons of this advanced age group.