Vertebral body replacement and insertion device

A vertebral body replacement device dimensioned for implantation between a first and second vertebral bone, comprising:

• an expandable body configured to expand from a first end to a second end along a longitudinal axis, the expandable body having an outer column, an inner column threadedly coupled and translatable relative to the outer column along the longitudinal axis, and an expansion ring;
• wherein the expansion ring is rotatable about the longitudinal axis to translate the outer column relative to the inner column to adjust a body length of the expandable body, the expansion ring comprising a plurality of radially extending teeth for engaging with an arm of the outer column and a plurality of teeth for engaging with an inserter device;
• the outer column comprising the arm for engaging a tooth of the plurality of radially extending teeth of the expansion ring;
• a first end of the inner column comprising a connector for attachment to a set screw of an endplate, the connector comprising facets, and an endplate comprising a set screw and a plate, the set screw entrapped within the plate between an inner annular ridge and an inner rim and the set screw having an internal pattern, wherein the endplate is connectable to the inner column;
• and
• wherein the arm of the outer column has a first, locked configuration in which the expansion ring cannot rotate relative to the outer column and a second, unlocked configuration in which the arm is expanded outwardly to disengage the tooth of the plurality of radially extending teeth to allow the expansion ring to rotate relative to the outer column.

A vertebral body replacement system comprising:

• an expandable body configured to expand from a first end to a second end along a longitudinal axis, the expandable body having an outer column, an inner column threadedly coupled and translatable relative to the outer column along the longitudinal axis, and an expansion ring;
• wherein the expansion ring is rotatable about the longitudinal axis to translate the outer column relative to the inner column to adjust a body length of the expandable body;
• the outer column comprising a first end and a second end, and wherein the first end comprises a connector for attachment to a set screw of an endplate;
• and
• an endplate comprising a set screw and a plate, the set screw entrapped within the plate between an inner annular ridge and an inner rim;
• and
• wherein the endplate is connectable to the outer column.