TY - JOUR T1 - Műtétek tervezése számítógéppel JF - OTKA MAGAZIN Y1 - 2010 A1 - Endre Varga A1 - Balázs Erdőhelyi JO - OTKA MAGAZIN ER - TY - CONF T1 - Semi-automatic bone fracture reduction in surgical planning T2 - International Conference on Computer Assisted Radiology and Surgery (CARS) Y1 - 2009 A1 - Balázs Erdőhelyi A1 - Endre Varga AB -

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.

JF - International Conference on Computer Assisted Radiology and Surgery (CARS) PB - Springer Verlag CY - Berlin, Germany VL - 4 ER - TY - CONF T1 - Surgical Planning Tool with Biomechanical Simulation T2 - International Conference on Computer Assisted Radiology and Surgery (CARS) Y1 - 2007 A1 - Balázs Erdőhelyi A1 - Endre Varga A1 - Attila Kuba AB -

The fixation of fractured bones often needs a very careful decision making. The operation has to be designed very carefully. A computer assisted system can help the surgeon in the planning phase to increase surgical accuracy. This paper introduces a software tool to plan a surgical intervention and to calculate the biomechanical stability of the plan. The proposed system provides 3D movement and rotation of the bone fragments and the insertion of fixation screws and plates. Finite element analysis is used to calculate mechanical stability of the surgical plan. Using these results the surgeon is able to see the week points of the fixation before the surgery. He can even try several surgical plans to pick the most promising one.

JF - International Conference on Computer Assisted Radiology and Surgery (CARS) PB - Springer CY - Berlin, Germany VL - 2 ER - TY - JOUR T1 - MedEdit: A Computer Assisted Image Processing and Navigation System for Orthopedic Trauma Surgery JF - ACTA CYBERNETICA-SZEGED Y1 - 2006 A1 - Endre Varga A1 - Krisztián Ollé A1 - Balázs Erdőhelyi A1 - Attila Kuba VL - 17 SN - 0324-721X JO - ACTA CYBERN-SZEGED ER - TY - ABST T1 - Comparision of Pennig Ex.Fix. and palmar plating with FEA, in radius (A3) fractures Y1 - 2004 A1 - Endre Varga A1 - Balázs Erdőhelyi A1 - Krisztián Ollé A1 - Attila Kuba A1 - J A Simonka N1 - [Előadás] [Előadás] ER - TY - JOUR T1 - Comparision of Pennig Ex.Fix. and palmar plating with FEA, in radius (A3) fractures JF - MAGYAR TRAUMATOLÓGIA ORTOPÉDIA KÉZSEBÉSZET PLASZTIKAI SEBÉSZET Y1 - 2004 A1 - Endre Varga A1 - Balázs Erdőhelyi A1 - Krisztián Ollé A1 - Attila Kuba A1 - J A Simonka VL - 4 SN - 1217-3231 JO - MAGYAR TRAUMATOLÓGIA ORTOPÉDIA KÉZSEBÉSZET PLASZTIKAI SEBÉSZET ER - TY - ABST T1 - Comparision of Synthes Hybrid Ex.Fix. and double plating in tibial fractures Y1 - 2004 A1 - Endre Varga A1 - Balázs Erdőhelyi A1 - Krisztián Ollé A1 - Zs Balogh A1 - Attila Kuba A1 - J A Simonka N1 - [Előadás] [Előadás] ER - TY - ABST T1 - Computer Assisted Image Processing and Navigation System for Orthopedic-Trauma Surgery Y1 - 2004 A1 - Endre Varga A1 - Krisztián Ollé A1 - Balázs Erdőhelyi A1 - György Bekes A1 - Krisztina Maróti A1 - Attila Kuba N1 - [Előadás] [Előadás] ER - TY - ABST T1 - MedEdit: A Computer Assisted Planning and Simulation System for Orthopedic-Trauma Surgery Y1 - 2004 A1 - Endre Varga A1 - Krisztián Ollé A1 - Balázs Erdőhelyi A1 - Csongor Halmai A1 - Attila Kuba N1 - [Előadás] [Előadás] ER - TY - ABST T1 - MedEdit: A Computer Assisted Planning system for Orthopedic-Trauma Surgery Y1 - 2004 A1 - Endre Varga A1 - Balázs Erdőhelyi A1 - Krisztián Ollé A1 - Zs Balogh A1 - Attila Kuba A1 - J A Simonka N1 - [Előadás] [Előadás] ER - TY - ABST T1 - Preparing Surgical Operation Plans for Finite Element Analysis Using the MedEdit System Y1 - 2004 A1 - Endre Varga A1 - Balázs Erdőhelyi A1 - Krisztián Ollé A1 - Attila Kuba N1 - [Előadás] [Előadás] ER -