METHOD FOR PERSONALIZED TOTAL KNEE REPLACEMENT Russian patent published in 2024 - IPC A61B17/56 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to traumatology and orthopaedics, and can be used in total knee replacement. Knee joint is approached. Capsule is released to the extent required for the insertion of the resection unit. Femoral condyles are filed, wherein a guide for distal resection is inserted into the intramedullary canal, and the gap between the support plate of the guide and the condyle with the worn-out cartilage is compensated by means of a measuring probe. Resection block is inserted, and a distal femoral condyle with intact cartilage is filed to the thickness of the femoral component of the endoprosthesis. Condyle with the worn-out cartilage is sawn to the thickness of the condyle with the intact cartilage minus the thickness of the lost cartilage determined on the MRI. After sawing, a test femoral component is installed and the knee joint is checked for balance. If observing an imbalance, a measuring probe is used to determine the thickness of the gap between the tibial condyle with the worn-out cartilage and the test femoral component by inserting a probe of the thickness at which the imbalance disappears. Then, tibial condyles are sawn starting from the condyle with worn cartilage; the thickness of the condyle with preserved cartilage is defined as the sum of the thickness of the condyle with worn cartilage and the thickness of the probe used to eliminate the imbalance.

EFFECT: method provides faster recovery of extremity function and rehabilitation of the patient, reduces the traumatisation of the performed procedure, and also enables to restore the biomechanics of the involved joint due to the release of soft tissues in the amount required for the installation of the resection blocks, and performing kinetic alignment of the newly created knee joint taking into account the degree of wear of the cartilaginous tissue of the tibial and femoral condyles.

1 cl, 9 dwg, 1 ex