TOLOCHENAZ, Switzerland--(BUSINESS WIRE)--Medtronic, Inc. (NYSE: MDT) today announced the enrollment of the first two patients in the European post market clinical study using the DIAM™ Spinal Stabilization System. The first two surgeries were performed on Nov. 24 by Dr. Gianluca Maestretti of the Hôpital Cantonal Fribourg, Switzerland, and Dr. Ferdinand Krappel of the Medizinisches Zentrum Kreis Aachen, Wuerselen, Germany.