Chicago-based Rush University Medical Center has landed a $10 million gift from a Lake Forest foundation for an orthopedic joint replacement surgery center at its new hospital. The gift from The Grainger Foundation will help Rush's effort to redevelop the entire medical center complex on Chicago's West Side. That 10-year plan, which began in 2005 and will cost more than $900 million, includes the hospital under construction, a new parking garage, power plant, and emergency center.