these developmental goals. Building on this success, Medtronic Sofamor Danek introduces the next generation in the CD HORIZON® Spinal System lineage, the CD HORIZON® LEGACY™ 5.5 Spinal System.The CD HORIZON LEGACY 5.5 Spinal System is a familiar top-loading multi axial screw system with an enhanced locking mechanism, a lower functional profile, and an ergonomically designed instrument set.
The system has also been designed for treatment of degenerative disease, deformity, and trauma indications.A primary enhancement of the CD HORIZON LEGACY 5.5 Spinal System is a unique reverse-angle thread locking mechanism. This locking mechanism preserves the ease of top-loading set screw introduction, while virtually eliminating the difficulties of cross-threading. This patented design, known as G4 Technology, also improves the ease and security of final tightening. An additional improvement is a reduction in the multi axial screw “footprint.” This modification diminishes the functional profile of the screw and limits the problems of facet impingement. Beyond these advances in implant design, the instrument set has been significantly re-engineered and improved. In addition to the substantial technical advances, an important design focus of the CD HORIZON LEGACY 5.5 Spinal System was to accommodate the specialized needs of the hospital and OR staff. Important factors include a broad range of surgical capabilities within a single system and the availability of modules for treatment of deformity and other specialty needs. Other alterations, such as color-coding by screw size, serve to limit the complexity of the system for the OR technician. Overall, the CD HORIZON LEGACY 5.5 Spinal System represents a significant advancement in the development and refinement of pedicle screw instrumentation.
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