Spinal spacing implant, spinal spacer assembly, expander and insertion instrument, kit and methods of assembly and use

A distraction instrument, comprising:

• a first inserter member;
• a second inserter member;
• a first arm coupled to the first inserter member;
• a second arm coupled to the second inserter member;
• a distraction system coupled to the first arm and second arm;
• a first handle coupled to the first arm and the distraction system;
• a second handle coupled to the second arm and the distraction system;
• and
• wherein actuation of the first handle and the second handle moves the distraction system and movement of the distraction system moves the first arm and the second arm to translate the first inserter member with respect to the second inserter member.

A method for inserting a vertebral body replacement device, comprising:

• obtaining the vertebral body replacement device and a distraction instrument;
• attaching a first member and a second member of the vertebral body replacement device to the distraction instrument;
• inserting the first member and the second member of the vertebral body replacement device into a patient;
• moving the distraction instrument to separate the first member and the second member;
• coupling a spacer to a spacer inserter;
• moving the coupled spacer and spacer inserter through the distraction instrument into position between the first member and the second member;
• disengaging the spacer inserter from the spacer and removing the spacer inserter from the distraction instrument;
• and
• disengaging the distraction instrument from the first member and second member of the vertebral body replacement device.