Vertebral Body Replacement

摘要

The present invention involves a system and methods for assembling and implanting a vertebral body implant. The vertebral body implant includes, but is not necessarily limited to, an expandable core body and endplates that can be attached at both ends. Endplates of various shapes, sizes and angles are attachable to the expandable core in a plurality of positions so that a suitable vertebral body implant can be implanted between vertebrae from an anterior, anterior-lateral, lateral, posterior or posterior-lateral approach.

主权项

1. An implant for providing support between a first vertebra and a second vertebra in a space remaining after the removal of at least part of one vertebra, comprising:
an expandable body having a transverse axis and a longitudinal axis, and a length extending from a first end to a second end wherein the expandable core body includes a ring member rotatable about the axis of the expandable body to adjust the length between the first end and the second end; a first endplate having a first surface opposing a second surface, said first endplate coupled to the expandable body via a first attachment feature on the first surface of the first endplate of the expandable body that mates with a first complementary attachment feature of the first endplate, said first attachment feature of the first end of the expandable body and said first complementary attachment feature of the first endplate are configured to allow the first endplate to be coupled to the first end of the expandable body in a plurality of positions relative to the transverse axis of the expandable body; and a second endplate a first surface opposing a second surface, said second endplate coupled to the expandable body via a second attachment feature of the second end of the expandable body that mates with a second complementary attachment feature of the second endplate, said second attachment feature of the second end of the expandable body and said second complementary attachment feature of the second plate are configured to allow the second end plate to be coupled to the second end of the expandable body in a plurality of positions relative to the transverse axis of the expandable body.