Federalnoe gosudarstvennoe byudzhetnoe uchrezhdenie "Rossijskij ordena Trudovogo Krasnogo Znameni nauchno-issledovatelskij institut travmatologii i ortopedii imeni R.R. Vredena" Ministerstva zdravookh
发明人:
Bilyk Stanislav Sergeevich,Билык Станислав Сергеевич,Efimov Nikolaj Nikolaevich,Ефимов Николай Николаевич,Kovalenko Anton Nikolaevich,Коваленко Антон Николаевич,Tikhilov Rashid Murtuzalievich,Тихилов
申请号：
RU2017135862
公开号：
RU0002665153C1
申请日:
2017.10.09
申请国别(地区):
RU
年份:
2018
代理人:
摘要：
FIELD: medicine.SUBSTANCE: invention refers to medicine, namely to traumatology and orthopaedics, and can be used in planning and performing operations of primary and revision hip replacement using three-dimensional models of pelvic bones and the acetabular component. Form three-dimensional models of the pelvic bones of the patient and the serial acetabular component with the planning of their optimal mutual positioning. On the edge of the acetabular component model, a landmark is marked, and holes for fixing screws are positioned on its hemisphere. Through the centers of these apertures, axes are formed on which cones are formed, corresponding to the permissible deviations of the conducted screws, with the vertices located at the points of intersection of the axes with the outer edge of the hemisphere. Then combine the obtained model of the acetabular component with the pelvic model and specify the necessary location of the rotation center of the endoprosthesis head and the angles of the frontal incision and anteversion. Perform the removal of bone tissue in the volume necessary for the installation of the acetabular component of the endoprosthesis. Then rotate the model of the acetabular component around the axis of the hemisphere and, without changing the angles of the frontal inclination and the anteversion of the component, select the necessary number of screws, their length, directions and holes for their conduct, on the model of the pelvic bones mark the edges of the acetabular component with a reference point. Form the tunnels corresponding to the direction of the insertion of the screws, after which the method of three-dimensional printing from the sterilized material reproduces a fragment of the obtained model of the pelvic bones, which is used during the operation to achieve the planned position of the acetabular component and to conduct the screws according to previously determined parameters.EFFECT: method makes it possible to optimize the positioning o
