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Determination of life time through slide wear tests

MOJ Applied Bionics and Biomechanics
González-Uribe I, Urriolagoitia-Sosa G, Gutierrez-Lonche L, Romero-Ángeles B, Sabas-González D, Torres-San Miguel CR, Urriolagoitia-Calderón GM


The use of ankle joint endoprosthesis has recently increased its application due to several various diseases affecting the bone structure conditions. The most common illnesses are osteoarthritis, osteoporosis, bone fractures, obesity and diabetes. Additionally, high cost and specialized knowledge make it impossible to develop this type of equipment for low class economies. Nevertheless, the use of endoprosthesis devices are more common now a days and the main problem with endoprosthesis it´s short service life, which are a permotion of wear between components and material composition. It is very important to determine and quantify the effect of wear in this devices. However, equipment design and manufacture to assess this kind task is not available (or is not confinable) and evaluating the service life of ankle joint endoprosthesis is not possible. For these reasons, a machine designed and manufactured at the Instituto Politécnico Nacional was carry out performed to perform wear analysis between the UHMW-PE insert and the Titanium component to predict the life of the endoprosthesis. Additionally, is a development which was carried out at a low cost, but it´s capable to perform analyses in all the real degrees of freedom that the ankle capable of produce.


endoprosthesis, ankle joint, ostreoarthrosis, obesity, diabete, ostreoarthrosis, pain, perform cycle, osteoporosis, obesity, diabetes, physical, therapies