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 .
Fixation of the NexGen HA-TCP-coated cementless, screwless total knee arthroplasty: comparison with conventional cementless total knee arthroplasty of the same type.
We performed a 12-month prospect i ve study on 59 patients ( 92 knees ) who underwent NexGen ( Zimmer Inc , Warsaw , IN ) cruciate-retaining total knee arthroplasty .  In the control group , uncoated components were fixed using screws , whereas the hydroxyapatite-tricalcium phosphate ( HA-TCP ) group underwent screwless fixation of coated components . At 12 months postoperatively , there was a radiographic clear zone around the femoral and tibial components of 56.5 % and 32.6 % of the knees in the control group . The HA-TCP group showed a clear zone at the medial aspect of the tibial component in only 1 knee . These results suggested that HA-TCP-coated articular components show good initial fixation without using screws . The NexGen coated knee arthroplasty may be useful for solving the problems of cementless fixation
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 .