{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,5]],"date-time":"2026-11-05T18:40:09Z","timestamp":1793904009247,"version":"4.8.0"},"reference-count":61,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2021,9,30]],"date-time":"2021-09-30T00:00:00Z","timestamp":1632960000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2021,9,30]],"date-time":"2021-09-30T00:00:00Z","timestamp":1632960000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2021,9,30]],"date-time":"2021-09-30T00:00:00Z","timestamp":1632960000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Knee surg. sports traumatol. arthrosc."],"published-print":{"date-parts":[[2022,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>The purpose of this meta\u2010analysis is to compare arthroscopic single bundle (SB) and double bundle (DB) anterior cruciate ligament (ACL) reconstructions in the light of all available randomised controlled trials (RCTs). A meta\u2010analysis of this well\u2010researched topic was performed and subgroup analyses of the medial portal (MP) technique and the transtibial technique (TT) were added as a new idea. The hypothesis was that the DB technique is superior to the SB technique also in subgroup analyses of the MP and TT techniques.\n<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Instructions of the PRISMA checklist were followed. Systematic literature search from electronic databases, including PubMed, Cochrane library and Scopus was performed to find RCTs that compared the SB and DB techniques. Nine outcomes were used to compare these two techniques. Each study was assessed according to the Cochrane Collaboration\u2019s risk of bias tool and three subgroup analyses (minimum 2\u2010years\u2019 follow\u2010up, TT technique and MP technique) were performed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>A total of 40 studies were included in this meta\u2010analysis. When analysing all the included studies, the DB technique was superior to the SB technique in KT\u20101000\/2000 evaluation (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.01), IKDC subjective evaluation (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.05), Lysholm scores (<jats:italic>p<\/jats:italic>\u2009=\u20090.02), pivot shift (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.01) and IKDC objective evaluation (<jats:italic>p<\/jats:italic>\u2009=\u20090.02). Similar results were also found in the subgroup analyses of minimum 2\u2010years\u2019 follow\u2010up and the TT technique. However, there were no differences between the two techniques in a subgroup analysis of the MP technique.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Generally, DB ACL reconstruction leads to better restoration of knee laxity and subjective outcomes than SB ACL reconstruction. The subgroup analysis of the MP technique revealed that surgeons can achieve equally as good results with both techniques when femoral tunnels are drilled through the medial portal.<\/jats:p><\/jats:sec><jats:sec><jats:title>Level of evidence<\/jats:title><jats:p>II.<\/jats:p><\/jats:sec>","DOI":"10.1007\/s00167-021-06744-z","type":"journal-article","created":{"date-parts":[[2021,9,30]],"date-time":"2021-09-30T13:04:06Z","timestamp":1633007046000},"page":"1795-1808","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":33,"title":["Double bundle ACL reconstruction leads to better restoration of knee laxity and subjective outcomes than single bundle ACL reconstruction"],"prefix":"10.1002","volume":"30","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8486-3422","authenticated-orcid":false,"given":"Arttu","family":"Sepp\u00e4nen","sequence":"first","affiliation":[{"name":"<!--<label>1<\/label>--> Faculty of Medicine and Health Technology Tampere University Arvo Ylp\u00f6n katu 34 33520 Tampere Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Piia","family":"Suomalainen","sequence":"additional","affiliation":[{"name":"<!--<label>2<\/label>--> Tampere University Hospital Orthopaedics Trauma Unit Tampere Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Heini","family":"Huhtala","sequence":"additional","affiliation":[{"name":"<!--<label>3<\/label>--> Faculty of Social Sciences Tampere University Tampere Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Heikki","family":"M\u00e4enp\u00e4\u00e4","sequence":"additional","affiliation":[{"name":"<!--<label>4<\/label>--> Department of Orthopaedics, Tampere University Hospital, Faculty of Medicine and Health Technology University of Tampere Tampere Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tommi","family":"Kiekara","sequence":"additional","affiliation":[{"name":"<!--<label>5<\/label>--> Medical Imaging Center, Tampere University Hospital, Faculty of Medicine and Health Technology Tampere University Tampere Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Timo","family":"J\u00e4rvel\u00e4","sequence":"additional","affiliation":[{"name":"<!--<label>6<\/label>--> Sports Medicine and Arthroscopic Center Hospital Mehil\u00e4inen Tampere Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2021,9,30]]},"reference":[{"key":"e_1_2_11_2_2","doi-asserted-by":"publisher","DOI":"10.1302\/0301\u2010620X.86B4.14856"},{"key":"e_1_2_11_3_2","doi-asserted-by":"publisher","DOI":"10.1055\/s\u20100037\u20101598176"},{"key":"e_1_2_11_4_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546518782454"},{"key":"e_1_2_11_5_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546509347096"},{"key":"e_1_2_11_6_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546513497926"},{"key":"e_1_2_11_7_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00264\u2010010\u20101110\u20109"},{"key":"e_1_2_11_8_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00402\u2010017\u20102774\u2010z"},{"key":"e_1_2_11_9_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010014\u20103156\u20105"},{"issue":"9","key":"e_1_2_11_10_2","first-page":"14604","article-title":"Comparison of single\u2010bundle versus double\u2010bundle anterior cruciate ligament reconstruction after a minimum of 3\u2010year follow\u2010up: a meta\u2010analysis of randomized controlled trials","volume":"8","author":"Chen G","year":"2015","journal-title":"Int J Clin Exp Med"},{"key":"e_1_2_11_11_2","doi-asserted-by":"publisher","DOI":"10.1186\/s13018-018-0753-x"},{"issue":"17","key":"e_1_2_11_12_2","first-page":"1332","article-title":"Clinical outcome of single\u2010bundle versus anatomic double\u2010bundle reconstruction of the anterior cruciate ligament: a meta\u2010analysis","volume":"48","author":"Chen M","year":"2010","journal-title":"Zhonghua wai ke za zhi [Chinese Journal of Surgery]"},{"key":"e_1_2_11_13_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010013\u20102811\u20106"},{"key":"e_1_2_11_14_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.aott.2018.12.004"},{"key":"e_1_2_11_15_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2011.11.021"},{"key":"e_1_2_11_16_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2011.02.015"},{"key":"e_1_2_11_17_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0736\u20100266(03)00133\u20105"},{"key":"e_1_2_11_18_2","doi-asserted-by":"publisher","DOI":"10.1007\/s11999\u2010011\u20101940\u20109"},{"key":"e_1_2_11_19_2","unstructured":"HigginsJ ThomasJ(2020)Cochrane Handbook for Systematic Reviews of Interventions.Version 6.1 2020. 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