The cost of employing agency and other temporary staffing in the NHS in England continued to grow in 2009/2010 as non-NHS staff spending reported by Trusts grew by 17.5% overall from 2008/2009, according to figures from Laing &?Buisson.Total agency & other non-NHS staff costs of Trusts in England were recorded at £2.22bn in 2009/2010, up…