The concept of dynamic stabilization of the spine has intrigued surgeons for decades. Although fusion is associated with very positive outcomes in properly selected patients, concern over the loss of segmental mobility has always been an issue, and many surgeons have been interested in therapies that do not eliminate motion and/or result in minimal change in the biomechanical forces transferred to the adjacent segments. This Neurosurgical Focus issue is meant to update all spine surgeons on the therapies designed to accomplish these goals.
This issue contains the latest clinical information referable to nonfusion options for the treatment of symptomatic degenerative lumbar disc disease. The data are robust. All those who are interested should carefully study each article so that patient outcomes are optimized.
Dr. Traynelis is a consultant and a patent holder for Medtronic and receives support from Globus and AO Spine for non–study-related clinical or research efforts that he oversees. Dr. Vaccaro receives royalties from Medtronic, Stryker Spine, Biomet Spine, Globus, Aesculap, Thieme, Jaypee, Elsevier, and Taylor Francis; is a consultant for DePuy, Medtronic, Stryker Spine, Globus, Stout Medical, Gerson Lehrman Group, Guidepoint Global, Medacorp, Innovative Surgical Design, Orthobullets, Expert Testimony, Ellipse, and Vertex; has direct stock ownership in Replication Medica, Globus, Paradigm Spine, Stout Medical, Progressive Spinal Technologies, Advanced Spinal Intellectual Properties, Spine Medica, Computational Biodynamics, Spinology, Small Bone Innovations, Cross Current, In Vivo, Flagship Surgical, Cytonics, Bonovo Orthopaedics, Electrocore, Gamma Spine, Location Based Intelligence, Flow Pharma, R.S.I., Rothman Institute and Related Properties, Innovative Surgical Design, and Avaz Surgical; and is on the scientific board or board of directors for AO Spine, Innovative Surgical Design, and Association of Collaborative Spine Research. Dr. Ames is a consultant for DePuy, Stryker, and Medtronic; has direct stock ownership in Doctors Research Group; is a patent holder with Fish & Richardson, PC; and receives royalties from Biomet Spine and Stryker.
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