A method for planning the process of severing human or animal bone tissue (9) comprises obtaining initial data of an initial environment of the bone tissue (9)； Define target data of the target environment of the bone tissue (9)； And computing the cut geometry using the initial data and the target data to split the bone tissue (9). The truncated geometry includes a structure in which the bone tissue 9 is shaped so that it can be reassembled in a manner that is at least one degree different in the target environment after cleavage along the cleavage geometry. By shaping the structure of the cleaved geometry according to the target environment of the bone, the planned cleavage can be provided with a specific function. In other words, these functional cuts can geometrically define and limit possible movements of the cleaved bone part with respect to each other. Thus, functional cleavage can allow relatively accurate rearrangement of the bone into the target location, and any movement from it can be prevented from at least one degree of freedom. Thus, the method according to the invention allows to cut the bone tissue, whereas reassembling the cleaved part of the bone tissue in accordance with the intended application is already considered at the outset. It is thus possible to ensure that the bone tissue can be relatively accurately and stably reassembled at the target location without compulsorily requiring additional fastening means or the like. The inaccuracy of manual or similar positioning of the cleaved bone portion during reassembly can be minimized or even eliminated.인간 또는 동물 뼈 조직 (9)을 절단하는 과정을 계획하기 위한 방법은 뼈 조직 (9)의 초기 환경의 초기 데이터를 획득하고； 뼈 조직 (9)의 표적 환경의 표적 데이터를 규정하고； 그리고 뼈 조직 (9)을 쪼개기 위해 초기 데이터와 표적 데이터를 이용하여 절단 기하구조를 연산하는 것을 포함한다. 절단 기하구조는 뼈 조직 (9)이 절단 기하구조를 따라서 쪼개진 후에 표적 환경에서 최소한 1 자유도 상이한 방식에서 재조립가능하도록 성형되는 구조를 포함한다. 뼈의 표적 환경에 따라 절단 기하구조의 구조를 성형함으로써, 계획된 절단은 특정 기능이 제공될 수 있다. 다시 말하면, 이런 기능적 절단은 서로에 관하여 쪼개진 뼈 부분의 가능한 움직임을 기하학적으로 규정하고 제한할 수 있다. 따라서, 기능적 절단은 뼈를 표적
