BOSTON--(BUSINESS WIRE)--Orthofix International N.V. (NASDAQ: OFIX) (the Company) today announced its results for the first quarter ended March 31, 2010. Total revenue was $138.8 million, which was an increase of 8% over the first quarter of 2009. Excluding the favorable $2.6 million impact of foreign currency on first quarter sales, revenue increased 6% on a constant currency basis.