The Starr-Edwards caged-ball prosthesis has been widely used to replace cardiac valves. The Model 6120 mitral prosthesis was introduced on the market in 1965 to reduce the high incidence of ball variance and thromboembolism of the previous model. We report the case of a Starr-Edwards Model 6120 which had been in place for 44 years and was still well functioning with no apparent structural damage.
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