Testing for Spinal Implant Constructs in a Vertebrectomy Model
This standard includes three static test methods (compression bending, tensile bending, and torsion) and a compression bending fatigue test. These test methods may be applied to cervical, thoracolumbar, lumbar, and lumbosacral spinal implant constructs. The spinal implant construct may include bone screws, rods, set screws, hooks, transverse elements, cables, wires, bolts, and/or plates. The spinal implant construct is assembled into specified test blocks to simulate a vertebrectomy model. Spinal implant assemblies are tested accordingly to determine yield load, stiffness, and strength. Fatigue tests shall reach a run-out of 5 million cycles or failure.
