{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,20]],"date-time":"2025-10-20T00:17:19Z","timestamp":1760919439919,"version":"build-2065373602"},"reference-count":63,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2011,10,5]],"date-time":"2011-10-05T00:00:00Z","timestamp":1317772800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100007279","name":"Shanghai Municipal Health Bureau","doi-asserted-by":"publisher","award":["2010QJ036A"],"award-info":[{"award-number":["2010QJ036A"]}],"id":[{"id":"10.13039\/501100007279","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Knee surg. sports traumatol. arthrosc."],"published-print":{"date-parts":[[2012,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>Despite the frequency with which total knee arthroplasties (TKAs) are performed, whether they are best performed using all\u2010polyethylene or metal\u2010backed tibial components remains a controversy. The aim of the present study was to determine the advantages and disadvantages of metal\u2010backed compared with all\u2010polyethylene tibial components during TKAs through an evaluation of current literature.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A meta\u2010analysis and systematic review of randomized and non\u2010randomized comparative studies comparing metal\u2010backed with all\u2010polyethylene tibial components during TKAs were performed. The focus of the analysis was on the outcomes of knee score, range of motion (ROM), quality of life, implant alignment, tibial migration, radiolucent line, complication, reoperation, and implant survivorship.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>A total of 10 randomized\/quasi\u2010randomized controlled trials and 13\u00a0non\u2010randomized comparative studies assessing 19,767 TKAs were eligible. On the basis of these studies, no significant differences were found between the 2\u00a0groups with regard to knee score, ROM, quality of life, complication, and reoperation. The findings indicated that using all\u2010polyethylene tibial components is associated with lower continuous migration rate compared with metal\u2010backed tibial components. Only 13 studies provided adequate data on implant survivorship during intermediate or long\u2010term follow\u2010up. Of these, 9 found that no statistical significance existed between the 2\u00a0groups. The other 3 studies found that using all\u2010polyethylene components yielded a higher survival rate than using metal\u2010backed components.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Metal\u2010backed tibial components had no obvious advantages over all\u2010polyethylene tibial components in TKAs. However, this finding should be interpreted with caution due to publication bias, low methodological quality of the included studies, and different surgical interventions.<\/jats:p><\/jats:sec><jats:sec><jats:title>Level of evidence<\/jats:title><jats:p>Therapeutic study (systematic review and meta\u2010analysis), Level III.<\/jats:p><\/jats:sec>","DOI":"10.1007\/s00167-011-1682-y","type":"journal-article","created":{"date-parts":[[2011,10,4]],"date-time":"2011-10-04T10:49:30Z","timestamp":1317725370000},"page":"1438-1449","source":"Crossref","is-referenced-by-count":10,"title":["Tibial component designs in primary total knee arthroplasty: should we reconsider all\u2010polyethylene component?"],"prefix":"10.1002","volume":"20","author":[{"given":"Tao","family":"Cheng","sequence":"first","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedic Surgery, Shanghai Sixth People\u2019s Hospital Shanghai Jiao Tong University School of Medicine 600 Yisan Road 200233 Shanghai 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