The majority of adverse events associated with CNTKA were minor and comparable with those seen with conventional TKA .
Clinical outcomes were comparable between the two techniques , with longer-term follow-up suggesting that CNTKA provided no benefit over conventional TKA in terms of sustained functional improvements .
At present , it is unclear whether the significant improvements shown in radiological outcomes after CNTKA translate to measurable clinical benefits .
BACKGROUND Conventional total knee arthroplasty ( TKA ) and the more recently available computer-navigated total knee arthroplasty ( CNTKA ) use alternative methods to achieve correct limb alignment .
This systematic review was undertaken to assess the safety and effectiveness of CNTKA compared with conventional TKA .
Functional outcome after computer-assisted versus conventional total knee arthroplasty: a randomized controlled study
Despite the frequent use of computer-assisted total knee arthroplasty ( TKA ) and better radiological results for coronal alignment reported in many studies , there is still no evidence of improved clinical outcomes when compared to conventional TKA . We compared alignment after navigated TKA and conventional TKA in 80 r and omized patients . Seventy three patients were available for physical and radiological examination at 20 month after surgery . Both groups showed similar Knee Society Score results , with medians of 89 points ( navigated 49–95 points , conventional 48–95 points , n.s . ) in the Knee Score and 70 points ( navigated 45–100 points , conventional 40–100 points , n.s . ) in the Function Score . The median improvement in the Knee Society Knee Score was 45 points ( −3 to 88 points ) in the navigated group and 35 points ( −13 to 62 points ) in the conventional group ( P = 0.03 ) , and the Knee Society Function Score improvement was 15 points ( −10 to 50 points ) in the navigated group versus 10 points ( −10 to 50 points ) in the conventional group ( n.s . ) . The current health state at follow-up using the EuroQuol question naire was similar in both groups , with medians of 67 points in the navigated group and 65 points in the conventional group . This investigation did show slightly greater functional improvement at short-term follow-up in the navigated TKA group . Longer follow-up will be required to assess the possible benefit of computer-assisted navigation
The majority of adverse events associated with CNTKA were minor and comparable with those seen with conventional TKA .
Clinical outcomes were comparable between the two techniques , with longer-term follow-up suggesting that CNTKA provided no benefit over conventional TKA in terms of sustained functional improvements .
At present , it is unclear whether the significant improvements shown in radiological outcomes after CNTKA translate to measurable clinical benefits .
BACKGROUND Conventional total knee arthroplasty ( TKA ) and the more recently available computer-navigated total knee arthroplasty ( CNTKA ) use alternative methods to achieve correct limb alignment .
This systematic review was undertaken to assess the safety and effectiveness of CNTKA compared with conventional TKA .