activL® is the lumbar disc prosthesis for the motion preserving treatment of degenerative disc disease of the lumbar spine. The main objectives of the treatmentare fast pain reduction and the preservation/restoration of segmental function and motion. The specific design of activL® allows the protection of the adjacent level. The unique translational movement of activL® is designed to minimize biomechanical stress at the facet joints and to avoid facet joint arthrosis in a medium- and long-term prospect.
Biotribological evaluation of artificial disc arthroplasty devices: Influence of loading and kinematic patterns during in vitro wear simulation; Thomas M. Grupp, James J. Yue, Rolando Garcia Jr., Janet Basson, Jens Schwiesau, Bernhard Fritz, Wilhelm Blömer; Eur Spine J (2009) 18:98-108
Analysis of Spinal Kinematics Following Implantation of Lumbar Spine Disc Prostheses versus Fusion: Radiological Study; A. Nabhan, B. Ishak, A. Al Hary, W. I. Steudel, O. Kollmar, O. Steimer; Journal of Long-Term Eff ects of Medical Implants, 17(3): 107-113 (2007)
Lumbar Total Disk Arthroplasty – Design and Technique Considerations for the Next-Generation Implant; James J. Yue, Rolando Garcia; Backup 2-2005, Springer
Initial Clinical Results of the activL® Lumbar Total Disc Replacement (TDR) Prosthesis: A Prospective Study with 1 year follow-up; Dirk Brücher, Christof Müller, Rolando Garcia, James J. Yue; Abstract/Poster on SAS 2007
Early Clinical and Radiographic Outcome with the activL® Total Disc Replacement: Data from Two Centers in the US IDE Trial; Garcia Rolando, Yue James J.; Abstract/Poster on SAS 2008
Clinical Evaluation of a New Lumbar Artificial Disc (activL®); S. Sola, R.Hebecker, S. Mann, J. Piek; Abstract/Poster SAS 2008
Prospective Randomized US Trial Comparing an Unconstrained, Semi-constrained, and Constrained TDR in the Treatment of Single Level Discogenic Pain: Radiograhic Results from 2 Centers in an FDA IDE Study; Garcia R., Yue J.J.; Abstract/Oral Presentation SAS 2009
Volumetric Analysis of Foraminal Parameters Following Lumbar Total Disc Replacement: A Radiographic and Clinical Comparison of 3 Biomechanical Types of Lumbar Disc Replacements: A Semi-Constrained Device, A Controlled Translation Device (CTD) and An Unconstrained Device; Yue J.J., Garcia R., Morreale J.M.; Abstract/Oral Presentation SAS 2009
Intercontinental Differences in Surgeon’s Preferences: North American versus European Surgeon Differences in Choice of Primary Endplate Fixation, Implant Size, Lordosis and Height; Rolando Garcia Jr MD, James Y Yue MD, Wolfgang Daiber; Abstract/Poster SAS 2009
Motion preserving total disc replacement (TDR)/disc arthroplasty in case of:
Degenerative Disc Disease (DDD) with leg and/or back pain and/or neurological deficits in legs and/or feet with or without disc herniation.
Lumbar discopathy and / or black disc syndrome.
Monosegmental or bisegmental disc degeneration between L3-S1.
Without significant degeneration of the facet joints.
Without significant instability.
Preoperative disc height of at least 3-4 mm.