Failure of total knee arthroplasty due to loosening and deformation of the tibial component.

摘要: A series of 100 consecutive UCI knee replacements showed a 7 per cent incidence reoperation due to loosening the prosthesis associated with permanent deformation tibial component. Analysis clinical data, roentgenograms, and removed implants associations between failure radiolucency at cement-bone interface, prosthetic obliquity, collapse trabecular bone, change alignment extremity, Although no one these factors by itself can be responsible for mechanical arthroplasty, predominant pattern exists. We think that sequence events is as follows: implantation component medial or lateral tilt; lack firm skeletal stabilization; continual microtrabecular fractures; in extremity; plastic