Spondylolithesis reduction spinal insert fusion cage and method of reducing spondylolithesis

摘要

A spondylolithesis reduction spinal insert fusion cage reduces spondylolithesis. The cage includes a first beam and a second beam each abutting one of a pair of adjacently positioned vertebral bodies. Spaced bars extend from the first beam and a threaded drive shaft is rotatably coupled to the first beam extending between the spaced bars. A second perimeter rim extends from the second beam. The bars are inserted into sleeves extending between the second beam and the second perimeter rim. At least one bridge extending between the sleeves has a medial section engaging the shaft wherein the bridge is moved along the shaft when the shaft is rotated. Each of a pair of connectors couples an associated one of the first beam and the second beam to an associated one of the vertebral bodies.