The MSV approach ranked better concerning clinical scores ( the lowest visual analogic scale , the higher KSS and KSFS ) and functional outcomes ( the shortest straight leg raise , the greatest degree of flexion and range of motion ) .
Concerning perioperative data , the MSV evidence d the shortest hospital stay , while the MPP the shortest surgical duration and lowest estimated blood loss .
According to the main findings of the present study , the mini-subvastus approach for total knee arthroplasty demonstrated superior overall compared to the other approaches .
Alternatives to the classical medial parapatellar ( MPP ) approach for total knee arthroplasty ( TKA ) include the mini-medial parapatellar ( MMPP ) , mini-subvastus ( MSV ) , mini-midvastus ( MMV ) and quadriceps-sparing ( QS ) approaches .
The best approach has been not fully clarified .
The purpose of the present study was to conduct a Bayesian network meta- analysis comparing these approaches .
[Long-term analysis of minimally invasive surgery in knee arthroplasty].
BACKGROUND Knee arthroplasty is the treatment of choice for gonarthrosis .  The development of minimally invasive surgery ( MIS ) requires assessing results based on the classical approaches and this is the purpose of our study . METHODS R and omized , prospect i ve study comparing two groups ; one underwent MIS ( 45 patients ) and the second one a classical approach ( 51 patients ) ; both groups were comparable . The following variables were assessed in the immediate postoperative period and at 4 and 8 years : blood loss , pain according to the VAS , flexion and extension and quality of life measured with the SF-36 . RESULTS In the immediate postoperative period we observed statistically significant differences ( p < 0.05 ) in favor of the MIS approach in pain , hospital stay and blood loss . However , this was not observed at 4 and 8 years concerning pain , quality of life and range of motion . We observed an improvement in the functional scale and quality of life compared with the preoperative status , without any differences when both groups were compared . CONCLUSIONS The MIS technique results in a better immediate postoperative period , but no differences were seen in the choice of the approach 4 and 8 years after surgery
The MSV approach ranked better concerning clinical scores ( the lowest visual analogic scale , the higher KSS and KSFS ) and functional outcomes ( the shortest straight leg raise , the greatest degree of flexion and range of motion ) .
Concerning perioperative data , the MSV evidence d the shortest hospital stay , while the MPP the shortest surgical duration and lowest estimated blood loss .
According to the main findings of the present study , the mini-subvastus approach for total knee arthroplasty demonstrated superior overall compared to the other approaches .
Alternatives to the classical medial parapatellar ( MPP ) approach for total knee arthroplasty ( TKA ) include the mini-medial parapatellar ( MMPP ) , mini-subvastus ( MSV ) , mini-midvastus ( MMV ) and quadriceps-sparing ( QS ) approaches .
The best approach has been not fully clarified .
The purpose of the present study was to conduct a Bayesian network meta- analysis comparing these approaches .