Implant survivorship for cementless TKA was comparable to the current gold st and ard cemented TKAs
Cementless  total knee arthroplasty ( TKA )  has had limited use in the United States , however , recent reports have demonstrated promising results , but there has been no meta- analysis to examine these outcomes in the past 5 years .
Navigated Cementless Total Knee Arthroplasty - Medium-Term Clinical and Radiological Results§
Purpose : The objective of this prospect i ve study was to evaluate the medium-term clinical and radiological results after navigated cementless implantation , without patella resurfacing , of a total knee endoprosthesis with tibial and femoral press-fit components , with a focus on survival rate and clinical outcome . The innovation is the non-cemented fixation together with the use of a navigation system . Scope and Methods : Sixty patients with gonarthrosis were included consecutively in this study . In all cases , the cementless Columbus total knee endoprosthesis with a coating out of pure titanium was implanted , using a navigation system . The Knee Society Score showed a statistically significant increase from 75 ( ± 21.26 ) before surgery to 180 ( ± 16.15 ) after a mean follow-up of 5.6 ( ± 0.25 ) years . The last radiological examination revealed no osteolysis . No radiolucent lines were seen at any time in the area of the femoral prosthetic components . In the tibial area , radiolucent lines were seen in 24.4 % of the cases , mostly in the distal uncoated part of the stem . During follow-up , no prosthesis had to be replaced because of aseptic loosening while in 2 cases revision surgery was necessary due to septic loosening and in 1 case due to unexplainable pain . Results and Conclusions : Navigated cementless implantation of the Columbus total knee endoprosthesis yielded good clinical and radiological results in the medium term . The excellent radiological osteointegration of the prosthetic components , coated with a microporous pure titanium layer and implanted with a press-fit technique , should be emphasized
Implant survivorship for cementless TKA was comparable to the current gold st and ard cemented TKAs
Cementless  total knee arthroplasty ( TKA )  has had limited use in the United States , however , recent reports have demonstrated promising results , but there has been no meta- analysis to examine these outcomes in the past 5 years .