RAW MATERIALS AND APPLICATIONS Mechanical Properties of cervical Fusion plates fabricated from Polyethylene reinforced by Kevlar and Carbon Fibers

Cervical spine degeneration is one of de fects leading to neck and neurological problems which can be resolved by cervi cal fusion implants. However, used tradi tional implant may lead to some compli cations. High-density polyethylene (HD PE) is introduced in this field because of its biocompatibility. 

For several decades, spinal devices have been commonly used to provide stability and correct spine disfigurements. The effectiveness of any biomaterial is gover ned by two characteristics: biofunctiona lity and biocompatibility. Biomaterials used in spinal implants should fulfill certain functional criteria for mechanical properties including high yield strength, stiffness, and fatigue strength. Biofunc tionality is the capability of an implant to perform the desired function, whereas biocompatibility is the compatibility of the material with human tissues.