Distraction/compression posterior rod system and methods of use

摘要

A method for fusing vertebral bodies comprising the steps of: mounting a first engagement member of a fixation member to a pedicle of a first vertebra and a second engagement member of the spinal fixation member to a pedicle of a second vertebra, the first engagement member having a first extension engaged with an expansion ring, the second engagement member having a second extension engaged with the expansion ring; inserting screws through the first and second engagement members and into the pedicles of the respective first and second vertebrae; rotating the expansion ring in a first direction, thereby distracting the first and second vertebrae; implanting an intervertebral implant between the first and second vertebrae after rotating the expansion ring in the first direction; and rotating the expansion ring in a second direction after implanting the intervertebral implant, thereby compressing the first and second vertebrae.

主权项

1. A spinal surgery method comprising the steps of:
mounting a posterior rod system to first and second vertebrae; distracting the first and second vertebrae by actuating the posterior rod system; inserting an intervertebral implant between the first and second vertebrae; and compressing the intervertebral implant between the first and second vertebrae by actuating the posterior rod system.