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 .
Computer-assisted minimally invasive total knee arthroplasty compared with standard total knee arthroplasty. A prospective, randomized study.
BACKGROUND There is little information on the feasibility of computer navigation when using a minimally invasive approach for total knee arthroplasty , during which the anatomic l and marks for registration may be obscured . The purpose of the present study was to determine the radiographic accuracy of this technique and to compare the rate of functional recovery between patients who underwent computer-assisted minimally invasive arthroplasty and those who underwent conventional total knee arthroplasty .  METHODS One hundred and eight consecutive patients were r and omized to undergo computer-assisted minimally invasive total knee arthroplasty or conventional total knee arthroplasty .  Perioperative pain management was st and ardized . The clinical parameters , long-leg radiographs , and functional assessment scores were evaluated for six months postoperatively . RESULTS Patients who underwent computer-assisted minimally invasive total knee arthroplasty had a significantly longer operative time ( by a mean of twenty-four minutes ) and a significantly shorter inpatient stay ( 3.3 compared with 4.5 days ) in comparison with those who underwent conventional arthroplasty ( p < /= 0.001 ) . Significantly more patients in the computer-assisted minimally invasive total knee arthroplasty group were able to walk independently for more than thirty minutes at one month ( p = 0.04 ) . The percentage of patients with a coronal tibiofemoral angle within + /-3 degrees of the ideal was 92 % for the computer-assisted minimally invasive total knee arthroplasty group , compared with 68 % for the conventional total knee arthroplasty group ( p = 0.003 ) . CONCLUSIONS Although specific clinical parameters reflect an early increased rate of functional recovery in association with computer-assisted minimally invasive total knee arthroplasty within the first postoperative month , the main advantage of this technique over conventional total knee arthroplasty is improved postoperative radiographic alignment without increased short-term complications
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 .