Current surgical procedure to deliver bone graft is spread out over multiple surgical steps. Additional surgical steps increase operative time, surgical risk and surgeon fatigue. Graft delivery typically involves a separate step with a round, end-dispensing device that applies a mantle of graft at the front of the disc space which needs to be further manipulated to make room for a fusion cage.
Introduction of the KG 2 implant restores anatomic disk height and allows near simultaneous application of bone graft and which enables maximal graft application. The exceptional design of the KG 2 implant allows it to serve as a conduit for bone graft insertion and is the first device of its kind to couple graft application with implant insertion. This process saves steps, reduces nerve manipulation and encompasses the implant and prepared disc space in bone graft.
The KG 2 system provides the surgeon with a single use PLIF or TLIF sterile tray in parallel or lordotic implant configurations. After disc space preparation, it simplifies the open or MIS fusion procedure by combining steps, minimizes nerve manipulation by reducing the number of instrument passes and maximizes graft application.
Optional coverplate to restrict graft migration. Internal ramps direct bidirectional flow of graft material into the prepared disc space The open architecture maximizes graft flow.
The large rectangular opening of the KG 2 is 400% larger than the standard post-packing 4mm cannulas. This difference allows the surgeon a proportionally large number of graft options for surgical treatment unavailable to other implants.
KG 2 requires fewer instrument passes decreases potential trauma to sensitive nerve and dural tissue. It reduces the learning curve for MIS surgical procedures, blood loss potential and infection risk. KG 2 is expected to diminish the need of fusion repair surgery by over 17%. Failed back surgery is commonly implicated in opiate abuse.*
* Kleiner JB, et al. Evaluation of a novel tool for bone graft delivery in minimally invasive transforaminal lumbar interbody fusion. Medical Devices: Evidence and Research. 2016;(9) 105-113.
* Nandyala, SV, et. al. Prospective, randomized, controlled trial of silicate-substituted calcium phosphate versus rhBMP-2 in a minimally invasive transforaminal lumbar interbody fusion. Spine. 2014;39(3):185-191.
* Wu RH, et. al. Minimal access versus open transforminal lumbar interbody fusion: meta-analysis of fusion rtes. Spine. 2010;35(26):2273-2281.
Diamond lattice structure: Pore size (600 μm), porosity (65%), and structure facilitate bone ingrowth*
* “Effect of pore size on bone ingrowth into porous titanium implants fabricated by additive manufacturing: An in vivo experiment”, Taniguchi et. al.