METHOD OF KNEE JOINT ARTHRODESIS WITH DEEP PERIENDOPROSTHETIC INFECTION USING INTRAMEDULLARY REINFORCED ANTIBACTERIAL CEMENT IMPLANT Russian patent published in 2020 - IPC A61B17/00 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to traumatology and orthopedics, and can be used for knee joint arthrodesis in conditions of deep periendoprosthetic infection. After removing the components of the infected endoprosthesis and saving the bone structure resection, the femoral and shin bone marrow canals are opened and rimmed. Then, in the intramedullary canals of the femoral and tibia bones, an antibacterial implant is prepared, which is manufactured intraoperatively from polymethylmethacrylate, at least 200 mm long and with a diameter corresponding to the diameter of the intramedullary canals, reinforced with a rod or a bundle of spokes and containing a therapeutic dose of the antibiotic. To create a compression in the knee joint, an external fixation apparatus is made, comprising two annular supports installed proximal and distal to the implant.

EFFECT: method provides reduced length of medical rehabilitation due to stable prolonged sanitizing effect and minimization of resection of bone tissue injured by purulent process, and also provides additional stability in the region of formed arthrodesis by using an intramedullary reinforced antibacterial implant made of polymethylmethacrylate containing an antibiotic, and the required degree of supporting compression – extra-focal osteosynthesis by Ilizarov's apparatus, which enables to combine sanitizing and reconstructive-recovery stages of treatment.

1 cl, 7 dwg