Pioneer Surgical Technology, Inc.

Matthew F Hanfelt

Jason Sandstrom

Jeffrey A Hoffman

Daniel Rae Robinson

John White

A minimally invasive and open surgery surgical system for implanting spinal screw assemblies to be connected by a spinal rod is disclosed. In one form, the system includes an improved tool device for inserting a cap insert into an initial and final locking of a screw assembly and securing a spinal rod inserted through an incision to a vertebra. In another form, the system also includes a screw fixation system that allows greater variability in thread diameter for orthopedic implant for in the spine, iliac crest, or bones.

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Marquette, MI, United States of America

Matthew F Hanfelt