You may have a claim for medical malpractice against the doctor who did the original surgery, if leaving the metal mesh inside was below the standard of care or the material risks and alternatives to such procedure were not disclosed to you. However, typically the statute of limitations for such claims is 3 years from the date of the allegedly negligent care. There are exceptions to this rule which you may qualify for. You should consult with an experience medical malpractice attorney to review your situation and advise you on your rights as soon as possible. You may find the link below helpful. Good luck.