KNEE JOINT REVISION ARTHROPLASTY METHOD WITH THE FEMORAL BONE DEFECT Russian patent published in 2019 - IPC A61B17/56 A61B6/03 

FIELD: medicine.

SUBSTANCE: invention relates to the medicine, namely to traumatology, orthopedics and radiation diagnosis, and can be used for the knee joint revision arthroplasty with the femur defect. Performing the patient preoperative examination using the computerized tomography. Based on the femur defect volumetric parameters, forming the computer model for the spacer, which at one end coincides with the femoral bone distal epiphysial cartilage relief, and from the other end repeating the endoprosthesis officinal femoral component inner surface. Remotely or via the hard media sending the femur defect computer model to the 3D printer for consisting of two parts with a hole in the body the spacer mold production. Then removing the endoprosthesis femoral component. Intraoperatively assembling the mold, through the hole in the body of which the bone cement with antibiotic is poured. After the cement curing, the mold is divided, obtaining the anatomically matching with the femur defect spacer. Installing the spacer into the defect on the bone cement with the antibiotic. After that, placing the endoprosthesis official femoral component thereon on the bone cement with the antibiotic.

EFFECT: method provides for the creation of articulation in the knee joint area with the femoral bone distal epiphysial cartilage bone structures deficiency, improving the knee joint function, reducing the inflammatory process recurrences frequency by using the femoral defect spacer created by the computerized tomography and the 3D printer.

1 cl, 3 dwg, 1 ex