{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T07:53:24Z","timestamp":1777881204257,"version":"3.51.4"},"reference-count":41,"publisher":"SAGE Publications","issue":"4","license":[{"start":{"date-parts":[[2026,4,1]],"date-time":"2026-04-01T00:00:00Z","timestamp":1775001600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"},{"start":{"date-parts":[[2026,4,1]],"date-time":"2026-04-01T00:00:00Z","timestamp":1775001600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Orthopaedic Journal of Sports Medicine"],"published-print":{"date-parts":[[2026,4]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>Anterior cruciate ligament reconstruction (ACLR) using a quadriceps tendon with bone (QTB) autograft has been associated with reduced quadriceps strength at 6 months postoperatively compared to other autograft options. However, limited studies have assessed strength recovery after return to sports after ACLR, particularly involving QTB autografts.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Purpose:<\/jats:title>\n                    <jats:p>To examine factors influencing quadriceps strength recovery at 6 and 12 months after ACLR using QTB, bone\u2013patellar tendon\u2013bone (BPTB), and hamstring tendon (HT) autografts.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Study Design:<\/jats:title>\n                    <jats:p>Cohort study; Level of evidence, 3.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>Individuals who underwent primary ACLR using QTB, BPTB, or HT autografts, had a preinjury Tegner activity scale (TAS) score &gt;5, and completed at least 12 months of follow-up were included. Participants were classified into recovery (&gt;90%) and nonrecovery (\u226490%) groups based on the limb symmetry index of quadriceps strength compared to the contralateral leg at 6 and 12 months post-ACLR. Variables associated with quadriceps strength recovery at these time points were analyzed.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      A total of 154 participants were included. Multivariable logistic regression showed that use of QTB (OR, 0.11;\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; .001) or BPTB (OR, 0.12;\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; .001) autografts, meniscal repair (OR, 0.34;\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      = .013), and lower preinjury TAS score (OR, 1.68;\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      = .011) were associated with a significantly increased risk of quadriceps strength deficit at 6 months after ACLR. At 12 months after ACLR, lower preinjury TAS score (OR, 1.48;\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      = .046) and lower Knee injury and Osteoarthritis Outcome Score (KOOS) pain at 3 months (OR, 1.09;\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      = .002) were associated with a significantly increased risk of quadriceps strength deficit. The receiver operating characteristic curve showed that a KOOS pain value at 3 months after ACLR of 83.1 points was the cutoff for indicating a strength deficit at 12 months (sensitivity, 78.4%; specificity, 59.1%).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>Use of QTB or BPTB autografts, meniscal repair, and lower preinjury TAS score were factors associated with quadriceps strength deficit at 6 months after ACLR. At 12 months, lower preinjury TAS score and lower KOOS pain at 3 months were factors associated with persistent strength deficit.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/23259671261432666","type":"journal-article","created":{"date-parts":[[2026,4,23]],"date-time":"2026-04-23T10:57:01Z","timestamp":1776941821000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Factors Associated with Quadriceps Strength Recovery at 6 and 12 Months After Anterior Cruciate Ligament Reconstruction Using Quadriceps Tendon-Bone, Bone-Patellar Tendon-Bone, and Hamstring Tendon Autografts"],"prefix":"10.1177","volume":"14","author":[{"given":"Nozomi","family":"Aibara","sequence":"first","affiliation":[{"name":"Graduate School of Sport and Exercise Sciences, Osaka University of Health and Sport Sciences, Osaka, Japan"},{"name":"Department of Rehabilitation, Kishimakai Clinic, Osaka, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8138-5341","authenticated-orcid":false,"given":"Yusuke","family":"Hashimoto","sequence":"additional","affiliation":[{"name":"Department of Sport Sciences, Osaka University of Health and Sports Science, Osaka, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shinya","family":"Yamasaki","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Tokyo Sports &amp; Orthopaedic Clinic, Tokyo, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ikuhisa","family":"Yanagida","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Kishimakai Clinic, Osaka, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Koshi","family":"Asaka","sequence":"additional","affiliation":[{"name":"Department of Rehabilitation, Kishimakai Clinic, Osaka, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shingo","family":"Otsuki","sequence":"additional","affiliation":[{"name":"Faculty of Sport and Health Sciences, Osaka Sangyo University, Osaka, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2026,4,23]]},"reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-011-1812-6"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1123\/jsr.2023-0256"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.knee.2021.11.007"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2020.08.029"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.1177\/03635465211017522"},{"key":"e_1_3_2_7_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546516688665"},{"key":"e_1_3_2_8_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-018-5029-9"},{"key":"e_1_3_2_9_2","doi-asserted-by":"publisher","DOI":"10.1177\/23259671211063800"},{"key":"e_1_3_2_10_2","doi-asserted-by":"publisher","DOI":"10.1177\/03635465231222279"},{"key":"e_1_3_2_11_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.knee.2021.04.012"},{"key":"e_1_3_2_12_2","doi-asserted-by":"publisher","DOI":"10.2340\/jrm.v53.1438"},{"key":"e_1_3_2_13_2","doi-asserted-by":"publisher","DOI":"10.1177\/23259671251330307"},{"key":"e_1_3_2_14_2","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports-2016-096031"},{"key":"e_1_3_2_15_2","doi-asserted-by":"publisher","DOI":"10.1177\/23259671231194593"},{"issue":"103258","key":"e_1_3_2_16_2","first-page":"103258","article-title":"Preoperative planning and harvesting technique of quadriceps tendon with bone block for anterior cruciate ligament reconstruction: an evidence-based, cosmetic, and precise harvest method","author":"Hashimoto Y","year":"2024","unstructured":"Hashimoto Y, Yamasaki S, Iida K, et al. 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