Method for extracting an implant installed in a bone, which comprises the application of a torque on an extraction tool in order to thread it in the interior of the implant until the implant-bone connection is broken, with the specific feature that the torque is applied in phases. In each phase a torque that is increasingly greater than in the previous phase is applied and the application of torque is then eased. This method brings about a gradual and controlled deformation of the head of the implant, with the result that the extraction tool is inserted more deeply into the implant. As a result, higher breakage torques may be applied without damage being caused to the extraction tool.一種取出安裝於骨頭內的植入體之方法，其包括施加力矩在取出工具上以將其螺入植入體內部直到打斷植入體-骨頭之連接為止，其具體的特徵為力矩分階段地被施加。在每一階段中，施加比前一階段更大的力矩，且然後減小力矩。此方法導致植入體之頭部的逐漸及受控制之變形，結果取出工具更深地插入植入體內。因此，可施加更高之斷裂力矩而不對取出工具造成傷害。
