Although the exact cause of osteoarthritis is not known, recent researches have suggested that multiple risk factors may have a vital role in the occurrence of this disorder. The main factors that have been identified include heredity, environmental and biomechanical stresses. Other factors that are considered as potential risk factors include: age above 50 years, high amount of minerals in the bone, long-term immobilization of the joints, injury to the joints, obesity and prolonged stress to the joints (such as those due to occupation or sports).² These factors result in chronic degeneration of the supporting tissues of the joints and leads to abnormal formation of the bone at the joints ultimately resulting in narrowing of the joint space.¹  

Written by: Healthplus24 team
Date:Jan4th,09

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