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 .
Fat emboli in total knee arthroplasty: a prospective randomized study of computer-assisted navigation vs standard surgical technique.
A prospect i ve exploratory study of fat emboli in patients undergoing total knee arthroplasty was performed in patients r and omly assigned to surgery with computer-assisted navigation or st and ard technique . Transesophageal echocardiography of the right atrium was recorded for 5 consecutive 1-minute intervals after tourniquet deflation . Emboli were grade d on a scale of 0 to 3 based on embolism size , amount of atrium filled , and duration of embolic shower , creating an overall score of 0 to 9 . The mean ( SD , range ) of the 5 overall scores for each total knee arthroplasty was 6.00 ( 0.76 , 4.6 - 7.4 ) for computer-assisted navigation ( 22 patients ) and 6.42 ( 0.97 , 4.6 - 7.9 ) for st and ard technique ( 22 patients ) ( P=.14 ) , with a 95 % confidence interval for the difference of -0.11 to 0.95 . We conclude that any difference in extent of emboli between the 2 surgical techniques is unlikely to be of clinical significance
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 .