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In the case of aseptic mobilization of THA, trunnionosis must always be considered as a possible cause. Although this phenomenon is related to the use of large metal heads, it is also important to take into account the length of the head or the presence of modularity of the implant. Trunnionosis requires further analysis to be fully understood and prevented in order to produce more performing implants and less prone to corrosion and early failure.
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