A literature review of robotic systems showed that these systems can , similarly to computer navigation , reliably improve lower leg alignment , component positioning and soft tissues balancing .
Findings in this study suggest that computer navigation or robotic assistance may help managing these multiple variables and could improve outcomes .
Recently , there is a growing interest in surgical variables that are intraoperatively controlled by orthopaedic surgeons , including lower leg alignment , component positioning and soft tissues balancing .
Since more tight control over these factors is associated with improved outcomes of unicompartmental knee arthroplasty and total knee arthroplasty ( TKA ) , several computer navigation and robotic-assisted systems have been developed .
Although mechanical axis accuracy and component positioning have been shown to improve with computer navigation , no superiority in functional outcomes has yet been shown .
This could be explained by the fact that many differences exist between the number and type of surgical variables these systems control .
Most systems control lower leg alignment and component positioning , while some in addition control soft tissue balancing .
Finally , robotic-assisted systems have the additional advantage of improving surgical precision .
Manually controlling all these surgical variables can be difficult for the orthopaedic surgeon .
To Cement or Not? Two-Year Results of a Prospective, Randomized Study Comparing Cemented Vs. Cementless Total Knee Arthroplasty (TKA).
The optimal mode of fixation in total knee arthroplasty ( TKA ) is a subject of debate . We enrolled 100 TKA patients r and omized to cemented or cementless fixation .  Knee Society Scores ( KSS ) , Oxford scores and pain visual analog scales ( VAS ) were collected pre-operatively and post-operatively . Two-year follow-up was obtained for 93 patients . The mean VAS trended higher for the cementless group at 4 months ( P=0.06 ) . At 2 years , the KSS functional scores , Oxford scores , and self-reported questions for satisfaction , less pain and better function were similar but the cemented group had higher KSS clinical scores ( 96.4 vs. 92.3 , P=0.03 ) . More radiolucencies were seen in cementless knees ( P<0.001 ) . The cementless group had one revision for instability and one cemented knee was revised for infection .  Cementless TKA showed equivalent survivorship ( revision for any reason as the endpoint ) compared to cemented TKA at this early follow-up . Close monitoring of radiolucencies is important with continued follow-up
A literature review of robotic systems showed that these systems can , similarly to computer navigation , reliably improve lower leg alignment , component positioning and soft tissues balancing .
Findings in this study suggest that computer navigation or robotic assistance may help managing these multiple variables and could improve outcomes .
Recently , there is a growing interest in surgical variables that are intraoperatively controlled by orthopaedic surgeons , including lower leg alignment , component positioning and soft tissues balancing .
Since more tight control over these factors is associated with improved outcomes of unicompartmental knee arthroplasty and total knee arthroplasty ( TKA ) , several computer navigation and robotic-assisted systems have been developed .
Although mechanical axis accuracy and component positioning have been shown to improve with computer navigation , no superiority in functional outcomes has yet been shown .
This could be explained by the fact that many differences exist between the number and type of surgical variables these systems control .
Most systems control lower leg alignment and component positioning , while some in addition control soft tissue balancing .
Finally , robotic-assisted systems have the additional advantage of improving surgical precision .
Manually controlling all these surgical variables can be difficult for the orthopaedic surgeon .