β Scribed by Safaa Alhassan; Tarun Goswami
No coin nor oath required. For personal study only.
The wear of polyethylene cup in hip implants is influenced by a set of primary parameters, which have been reported to lead to loosening of the implant and osteolysis. Mass loss as a result of wear leading to osteolysis may cause dislocation and subsequently revision and/or replacement of the implant. An attempt was made to develop a comprehensive wear rate prediction equation in terms of the implant dimensions, namely femoral head roughness, femoral head diameter, subject body weight and mechanical properties of ultra high molecular weight polyethylene (UHMWPE). The effect of mechanical properties of polyethylene was also introduced so that a more comprehensive equation can be developed.
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## Abstract It is recognized that the chronic inflammation in periβprosthetic tissue that contributes to implant failure frequently is provoked by the presence of wear debris. Some wear debris is inevitable because of the nature of the prosthesis, but not all patients develop severe inflammatory re