federalnoe gosudarstvennoe byudzhetnoe uchrezhdenie "Natsionalnyj meditsinskij issledovatelskij tsentr travmatologii i ortopedii imeni R.R. Vredena" Ministerstva zdravookhraneniya Rossijskoj Federatsi
发明人:
Chernyj Aleksandr Andreevich (RU),Черный Александр Андреевич (RU),Kornilov Nikolaj Nikolaevich (RU),Корнилов Николай Николаевич (RU),Kulyaba Taras Andreevich (RU),Куляба Тарас Андреевич (RU),Kazemirsk
申请号：
RU2019144221
公开号：
RU0002724490C1
申请日:
2019.12.24
申请国别(地区):
RU
年份:
2020
代理人:
摘要：
FIELD: medicine.SUBSTANCE: invention refers to medicine, namely to traumatology and orthopedics, and can be used in operations of primary and revision knee arthroplasty in presence of massive defect of distal femur. At the stage of preoperative planning, performing, by means of multisliral computed tomography data, constructing a three-dimensional model of a distal femur with a defect and replacing an augmentation defect by additive techniques with using CT images of the contralateral femoral bone if necessary, as well as taking into account the femoral component of the endoprosthesis and the planned augment with their mutual positioning. Individual shape of the augmentation body is determined taking into account the bone defect configuration. Planned and marked on 3D models of augment are smooth and porous zones of its surface, thickness of its walls is planned, necessary axes are planned by means of virtual reconstruction relative to bone reference points. Further, a final version of an augment completely compensating for the existing bone defect and a congruent adjoining surface of the femoral component of the endoprosthesis is created. At the next step, 3D printing of a plastic prototype of the augment and a plastic model of the distal femur with a bone defect is performed, and after fitting and fitting by smoothing the edges of the bone defect to facilitate the augmentation taking into account the femoral component of the endoprosthesis. After its fitting with the femoral component of the endoprosthesis, 3D printing of augmented anode from powdered titanium in full compliance with created 3D model. At the stage of the reconstructive surgery, the individually planned augmentation to the defect of the distal femur is first set, smoothing the edges of the bone defect, if necessary, and excising the existing scar tissue. After achieving the required congruence, a standard femoral component of the endoprosthesis is installed using the bone cement under the required
