Two area hospitals have settled a medical-malpractice case with the family of a quad-amputee 4-year-old boy for $47.5 million, a record among medical-malpractice settlements in Illinois.The settlement ended a lawsuit filed by the parents of a now 4-year-old boy who was rendered a quad-amputee after a bacterial infection allegedly went undiagnosed by medical staff over a 32-hour stay in the care of a suburban hospital.John R. Kirkton, editor of the Jury Verdict Reporter, confirmed Tuesday that the agreement marks the …