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MAS® PLIF Fact Sheet About Lumbar Interbody Fusion Lumbar interbody fusion is a surgical technique that attempts to eliminate instability in the back. Instability can result from degenerated discs and/or facet joints that cause unnatural motion and pain, loss of height of the disc space between the vertebrae that causes pinching of the spinal nerves exiting the spinal canal (foraminal stenosis), slippage of one vertebra over another (listhesis), and/or change in the normal curvature of the spine (scoliosis, hyper- or hypo-lordosis). Fusion is accomplished by creating a bridge of bone between two vertebral bodies to reduce their motion. In preparation for spinal fusion, the intervertebral disc is removed and a spacer device is placed between the vertebrae to restore spinal alignment and disc height. Bone-forming cells (autograft) are inserted to promote new bone growth. The fusion then occurs between the endplates of the vertebrae. About Maximum Access Surgery Posterior Lumbar Interbody Fusion (MAS® PLIF) The NuVasive® MAS PLIF procedure is a minimally disruptive approach to traditional back surgery. Traditionally, a PLIF is performed by making a midline incision in the patient’s back and retracting the attached muscles laterally (to the side) beyond the facet joint to allow sufficient access to the spine. This often results in postoperative approachrelated muscle pain and denervation (loss of nerve supply). The distinct difference between a traditional “open” PLIF and a minimally disruptive MAS PLIF, is the medialized surgical approach and smaller incision. By using a medialized (closer to the spinous process) screw entry point, the MAS PLIF procedure is designed to eliminate the need to retract muscle laterally (wide) past the facet joint, therefore requiring a smaller incision than an “open” PLIF. By minimizing the amount of muscle disruption, this procedure is intended to reduce postoperative approach-related muscle pain and enable a faster recovery for the patient. Completed procedure with the MaXcess® MAS PLIF retractor in place. MAS® PLIF Fact Sheet MAS® PLIF Patient Benefits Reduced Blood Loss and Minimal Scarring The medialized surgical approach allows for a smaller incision and causes less muscle disruption than a traditional “open” PLIF. Reduced Hospital Stay Most MAS PLIF patients are discharged from the hospital 1-2 days after surgery. Reduced Postoperative Pain The MAS PLIF procedure avoids excessive lateral dissection/retraction that can cause trauma to and denervation of back muscles. Faster Return to Normal Activity Because this procedure is less disruptive than conventional posterior surgery, most patients are able to stand up and walk the evening after surgery. About NuVasive® NuVasive is an innovative medical device company focused on developing minimally disruptive surgical products and procedures for the spine. Our mission is to improve the lives of patients who suffer from debilitating back, neck, or leg pain by creating cutting-edge products and procedures that revolutionize spine surgery through focusing on Speed of Innovation®, Absolute Responsiveness®, and Superior Clinical Results. As with any spine surgery, there are potential benefits and possible risks associated with the MAS TLIF procedure. Individual results will vary. It is important to discuss the possible risks and potential benefits of MAS TLIF with a physician prior to receiving treatment, and that you rely on your physician’s judgment. Only your physician can determine whether you are a suitable candidate for this procedure. NuVasive, Inc., 7475 Lusk Boulevard, San Diego, CA 92121 • Tel 800.475.9131 Fax 800.475.9134 www.nuvasive.com © 2012. NuVasive, Inc. All rights reserved. , NuVasive, Speed of Innovation, Absolute Responsiveness, MAS, and MaXcess are registered trademarks of NuVasive, Inc. 12-NUVA-1255