01803nas a2200145   4500008004100000245006400041210006300105260003700168300001200205490000600217520129000223100002401513700001701537856010301554       2009                        eng d00aSemi-automatic bone fracture reduction in surgical planning0 aSemiautomatic bone fracture reduction in surgical planning  aBerlin, GermanybSpringer Verlag  aS98-S990 v43 a<p>The surgical intervention of complex bone fractures has to be planned very carefully, especially for such a complex region as the pelvic ring. The computer aided surgical planning is done before the actual surgery takes place and its main purpose is to gather more information about the dislocation of the bone fragments and to arrange the surgical implants to be inserted. With the help of finite element analysis even the biomechanical stability of the whole plan can be predicted. To create such a plan the following steps are performed. First, the CT dataset of the patient is segmented [1], which enables us to treat the different bones and broken fragments separately. Next the surface of this volumetric dataset is determined [2] and presented in a 3D environment. Since the fragments may have moved during the fracture, it is essential to move and rotate them back to their original anatomic position. Without this reduction, no implants can be inserted, since the final locations of the fragments are unknown. Previous solutions to the fracture reduction problem included moving the fragments with the mouse, or a special 3D haptic device. The former is not intuitive to use since the mouse is only 2D, and the later is expensive and still requires learning. <tt> </tt></p>1 aErdőhelyi, Balázs1 aVarga, Endre  uhttps://www.inf.szte.hu/en/publication/semi-automatic-bone-fracture-reduction-in-surgical-planning