DEERFIELD, Ill., May 02, 2019 (GLOBE NEWSWIRE) — RTI Surgical Holdings, Inc. (Nasdaq: RTIX), a global surgical implant company, reported operating results for the first quarter of 2019. First Quarter 2019 Highlights: Revenue of $69.7 million, inclusive of $2.0 million from acquisition of Paradigm SpineNet loss of $9.1 million, inclusive of $9.0 million of net …