The present invention provides a method for treating at least one of the following: osteoarthritis, rheumatoid arthritis, cartilage injury, and a cartilage defect containing the following steps. First, a defective cartilage tissue is provided. Second, a solution containing ions for treating defective cartilage tissue is provided. Third, the solution containing ions is introduced about the defective cartilage tissue. Fourth, an electrical source generates electricity. Fifth, the solution containing ions and an area about the defective cartilage tissue is contacted with the electricity from the electrical source. Sixth, the electrical source is powered on to provide electricity, whereby the ions move from the solution and into the defective cartilage tissue.