ALACHUA, Fla.--(BUSINESS WIRE)--Regeneration Technologies, Inc. (RTI) (Nasdaq:RTIX), a leading processor of orthopedic and other biologic implants, and Tutogen Medical, Inc. (Amex:TTG), a leading manufacturer of sterile biological implants made from human (allograft) and animal (xenograft) tissue, today announced that the boards of directors of both companies have unanimously approved a definitive agreement to combine the two companies in a tax-free, stock-for-stock exchange.