There was no significant difference in the outliers on complications , knee flexion , and postoperative functional scores .
Coronal plane tibial component showed statistically significant number of outliers in the MIS group demonstrating superior component positioning in the MIS CA group .
Computer-assisted minimally invasive TKA is superior than the st and ard MIS TKA in terms of component positioning ; however , it is unclear if this will have any long-term clinical implication s. The increased operative time , although clinical ly relevant , does not appear to be associated with an increase in complications
BACKGROUND Median parapatellar approach is the most used for total knee arthroplasty ( TKA ) .
With the advent of enhanced recovery and shorter length of hospital stay , there is an increasing pressure on surgeons to perform surgery through smaller incisions .
Minimally invasive ( MIS ) TKA allows earlier functional recovery ; it is not clear if this is associated with more complications .
It is also unclear if computer-assisted minimally invasive ( MIS CA ) TKA has any affect on improving patient outcomes .
We performed a systematic review and meta- analysis comparing MIS CA vs MIS TKA .
Midterm outcomes of electromagnetic computer-assisted navigation in minimally invasive total knee arthroplasty
Background A combination of two emerging technologies , computer-assisted navigation and minimally invasive surgery , in total knee arthroplasty has gained increasing interests from orthopedic surgeons around the world . To date , there has never been any midterm study for clinical and radiographic outcomes from using an electromagnetic computer-assisted navigation system . In this study , we aim ed to systematic ally compare clinical and radiographic outcomes of minimally invasive surgery in total knee arthroplasty ( MIS-TKA ) performed with and without electromagnetic computer-assisted navigation at immediate and midterm follow-ups . Methods A total of 151 patients ( 160 knees ) who underwent MIS-TKA were r and omized to be operated with electromagnetic computer-assisted navigation ( group I : 75 patients , 80 knees ) or without the navigation ( group II : 76 patients , 80 knees ) . The clinical and radiographic outcomes of immediate , 6-week postoperative follow-up and average 6.1-year follow-up were compared . Results On immediate , 6-week postoperative follow-up , clinical and radiographic outcomes did not reveal any difference between the two groups except for the fact that the operative time was longer in the navigation group . On 6.1-year follow-up , a total of 58 patients ( 63 knees ) from group I and 58 patients ( 61 knees ) from group II were reevaluated . There were no significant differences in clinical and radiographic loosening and in complications between the two groups . Conclusion In this study , no significant differences of clinical and radiographic outcomes were found for immediate and midterm follow-ups of MIS-TKA performed with and without electromagnetic computer-assisted navigation except for the additional operating time in the navigation group
There was no significant difference in the outliers on complications , knee flexion , and postoperative functional scores .
Coronal plane tibial component showed statistically significant number of outliers in the MIS group demonstrating superior component positioning in the MIS CA group .
Computer-assisted minimally invasive TKA is superior than the st and ard MIS TKA in terms of component positioning ; however , it is unclear if this will have any long-term clinical implication s. The increased operative time , although clinical ly relevant , does not appear to be associated with an increase in complications
BACKGROUND Median parapatellar approach is the most used for total knee arthroplasty ( TKA ) .
With the advent of enhanced recovery and shorter length of hospital stay , there is an increasing pressure on surgeons to perform surgery through smaller incisions .
Minimally invasive ( MIS ) TKA allows earlier functional recovery ; it is not clear if this is associated with more complications .
It is also unclear if computer-assisted minimally invasive ( MIS CA ) TKA has any affect on improving patient outcomes .
We performed a systematic review and meta- analysis comparing MIS CA vs MIS TKA .