Lumbar Spinal Stenosis Clinical Trial
Official title:
Lumbar Fusion With 3D-Printed Porous Titanium Interbody Cages - A Single-Blinded Randomized Controlled Trial Evaluating Nexxt Matrixx(TM) Versus PEEK Cages
The purpose of this randomized controlled trial is to assess and compare radiographic and clinical outcomes in patients who are to undergo combined interbody/posterolateral lumbar fusion procedures, supplemented with pedicle screw instrumentation, using one of the following interbody cages; the Nexxt Spine Nexxt MatrixxTM 3D-printed titanium cage or the HonourTM poly-ether-ether-ketone cage.
This randomized controlled trial will prospectively evaluate the safety and efficacy of the Nexxt MatrixxTM System titanium implant supplemented with a pedicle screw system as compared to a representative PEEK cage currently used in routine fashion for lumbar interbody fusion procedures. This study will capture clinical and radiographic outcomes on patients up to 2 years post operatively. Both cages will be used in conjunction with milled local autograft bone generated as part of the spinal fusion procedure (no iliac crest autograft will be utilized). This single centered study will enroll up to 70 subjects (n = 35 per group), with subjects followed for 24 months post-surgery. All subjects enrolled in the study will be recruited from a pool of subjects eligible for combined interbody/posterolateral lumbar fusion surgery. Subjects will be randomized in the trial to receive either the Nexxt Spine Nexxt MatrixxTM 3D-printed titanium cage or the HonourTM PEEK cage supplemented with a pedicle screw system and milled local autograft bone. Subject randomization will be stratified according to smoking status. Subjects will be blinded to their group status for the duration of the study assessments and procedures (24 months post-operatively). Subject study data will be collected preoperatively, intra-operatively and postoperatively at 3, 6, 12, and 24 months. ;
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