“…Still, there are issues of long term health consequences with the foreign body reactions and further migrations that could cause compression of vital structures such as nerves, vessels or the ureter, remain not yet answered. Therefore, the situation is maybe best solved in a planned second operation, after the exact localisation of the trial femoral head is determined, preferably by the MSCT because the vast majority of the trial femoral heads is radiolucent and intraoperative fluoroscopy and standard radiographs are of negligible significance 2–5 8 10…”