{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,8]],"date-time":"2026-07-08T05:34:57Z","timestamp":1783488897932,"version":"3.55.0"},"reference-count":50,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2021,4,19]],"date-time":"2021-04-19T00:00:00Z","timestamp":1618790400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2021,4,19]],"date-time":"2021-04-19T00:00:00Z","timestamp":1618790400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.springer.com\/tdm"},{"start":{"date-parts":[[2021,4,19]],"date-time":"2021-04-19T00:00:00Z","timestamp":1618790400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.springer.com\/tdm"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Knee surg. sports traumatol. arthrosc."],"published-print":{"date-parts":[[2022,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>To compare patient reported outcomes and functional knee recovery following anterior cruciate ligament (ACL) reconstruction using either a quadriceps tendon (QT) or hamstring tendon (HT) autograft.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Thirty\u2010five QT patients (age 20; range 15\u201334 years) participated in this study and were matched for gender, age and pre\u2010injury activity level to 70 HT (age 20; range 15\u201332 years) patients. The following assessments were performed at 6 and 12\u00a0months post\u2010operatively; standardized patient\u2010reported outcome measures (IKDC, KOOS\u2010QOL, ACL\u2010RSI, Marx activity, anterior knee pain), knee range of motion (passive and active), anterior knee laxity, hop tests (single and triple crossover hop for distance), and isokinetic strength of the knee extensors and flexors. All dependent variables were analysed using a two\u2010way mixed ANOVA model, with within (Time; 6 and 12\u00a0months) and between\u2010subject (Graft; QT and HT) factors.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Patient reported outcome measures and hop performance improved between 6 and 12\u00a0months (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001), however no significant differences in either patient\u2010reported outcomes or hop performance were found between the two grafts. Isokinetic strength testing showed both groups improved their peak knee extensor strength in the operated limb between 6 and 12\u00a0months (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001), but the QT group had significantly lower knee extensor strength symmetry at both time points compared to HT at 60 deg\/s (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001) and 180 deg\/s (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.01). In contrast, the QT group had significantly greater knee flexor strength symmetry at both time points compared to HT at 60 deg\/s (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.01) and 180 deg\/s (<jats:italic>p<\/jats:italic>\u2009=\u20090.01), but knee flexor strength limb symmetry did not significantly improve over time in either group.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Recovery of knee function following either QT or HT ACL reconstruction continues between 6 and 12\u00a0months after surgery. However, knee extensor strength deficits in the QT group and knee flexor strength deficits in the HT persisted at 12\u00a0months. This may have implications for decisions regarding return to sport.<\/jats:p><\/jats:sec><jats:sec><jats:title>Level of evidence<\/jats:title><jats:p>III.<\/jats:p><\/jats:sec>","DOI":"10.1007\/s00167-021-06565-0","type":"journal-article","created":{"date-parts":[[2021,4,19]],"date-time":"2021-04-19T13:03:34Z","timestamp":1618837414000},"page":"1300-1310","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":45,"title":["Knee strength deficits following anterior cruciate ligament reconstruction differ between quadriceps and hamstring tendon autografts"],"prefix":"10.1002","volume":"30","author":[{"given":"Peta T.","family":"Johnston","sequence":"first","affiliation":[{"name":"<!--<label>1<\/label>--> School of Allied Health, Human Services and Sport, College of Science, Health and Engineering La Trobe University 3086 Melbourne VIC Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Julian A.","family":"Feller","sequence":"additional","affiliation":[{"name":"<!--<label>2<\/label>--> OrthoSport Victoria Research Unit Melbourne Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jodie A.","family":"McClelland","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> School of Allied Health, Human Services and Sport, College of Science, Health and Engineering La Trobe University 3086 Melbourne VIC Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5573-3688","authenticated-orcid":false,"given":"Kate E.","family":"Webster","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> School of Allied Health, Human Services and Sport, College of Science, Health and Engineering La Trobe University 3086 Melbourne VIC Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2021,4,19]]},"reference":[{"key":"e_1_2_11_2_2","doi-asserted-by":"publisher","DOI":"10.1177\/2325967113518305"},{"key":"e_1_2_11_3_2","doi-asserted-by":"publisher","DOI":"10.1093\/aje\/kwq224"},{"key":"e_1_2_11_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.knee.2018.11.004"},{"key":"e_1_2_11_5_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546519878432"},{"key":"e_1_2_11_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2018.01.047"},{"key":"e_1_2_11_7_2","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports-2015-094765"},{"key":"e_1_2_11_8_2","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports-2018-099982"},{"key":"e_1_2_11_9_2","doi-asserted-by":"publisher","DOI":"10.1002\/acr.20632"},{"key":"e_1_2_11_10_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-019-05396-4"},{"key":"e_1_2_11_11_2","unstructured":"CristianiR MikkelsenC WangeP OlssonD St\u00e5lmanA Engstr\u00f6mBAutograft type affects muscle strength and hop performance after ACL reconstruction. 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