Clinical evaluation performed by medical affairs director subsidence of the tibial component in a uka.Date of primary surgery unspecified.Presumably the adverse event took place shortly after index operation.Apparently, the bone coverage was insufficient to offer adequate primary stability.This may be due to difficulties in size selection or placement of the component, but of course other factors may have influenced, such as the advanced age of the patient, although the bone quality appears radiographically to be rather good.The definitive cause for subsidence cannot be identified with the information at hand.
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