Arthroscopic Treatment Of Medial Synovial Plica Syndrome:A Meta-Analysis

Objective:A meta-analysis was performed to evaluate the effective of arthroscopic plica excision in the treatment of medial synovial plica syndrome of knee.Materials and Methods:The two authors independently searched the database including PubMed,Embase,Web of Science and Cochrane.There is no language limit for searching,and included studies from initial to April 2020.We include the studies with“excellent” or “good” as the evaluation standard according to the score.Methodological Index for Non-Randomized Studies Assessment(MINORS)were used to evaluate the quality of the included studies.Data were extracted and analyzed using Stata14.0 software(Stata,College Station,TX,USA).Results:A total of 11 studies were included,including 326 knee joints of medial synovial plica syndrome,and all patients underwent arthroscopic medial synovial plica resection.Our meta-analysis results show that the rate of follow-up results evaluated as excellent or good after surgery is about 77.8%[95% confidence interval(CI),0.726,0.822].For patients without chondromalacia of medial femoral condyle,the rate of good and excellent outcomes was estimated at 81.0%(95%CI,0.744,0.862).In those cases that had conservative treatment prior to surgery,the rate of good and excellent outcomes of surgery was estimated at 72.6%(95%CI,0.540,0.857).It is estimated at82.9%(95%CI,0.773,0.873)for patients undergoing direct arthroscopic surgery.The rate of excellent or good results were about 79%(95%CI,0.704,0.856)in those cases that had standardized rehabilitation treatment after operation.Conclusions:Based on the existing research,arthroscopic surgical management of medial synovial plica syndrome is effective in treating medial synovial plica syndrome,especially in the cases without chondromalacia of medial femoral condyle.we recommend that arthroscopic plica excision can be used one treatment method for therelated patients with medial plica syndrome after failure of non-surgical intervention,but also be valid as the first-line treatment method for the patient.