{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T07:53:16Z","timestamp":1777881196127,"version":"3.51.4"},"reference-count":55,"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) is associated with a high incidence of posttraumatic osteoarthritis (PTOA). The incidence is even higher when ACLR is combined with meniscal surgery (ACLR+M). The mechanisms associated with the onset and progression of PTOA after injury and surgery are not fully understood, but altered joint biomechanics shortly after surgery are implicated.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Purpose:<\/jats:title>\n                    <jats:p>To compare the side-to-side differences in joint kinematics (ie, osteokinematics) and articular cartilage arthrokinematics at 1 to 2 years after ACLR+M during 3 demanding activities that challenge the knee with high-impact loads, large rotations, and non\u2013sagittal-plane movements.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Study Design:<\/jats:title>\n                    <jats:p>Descriptive laboratory study.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>A total of 12 participants (8 male and 4 female) who had undergone ACLR+M at 1 to 2 years previously participated. Dynamic activities included single-leg landing, lunging, and pivoting. Tibiofemoral osteokinematic data of both knees were captured using dual fluoroscopy combined with model-based tracking. Osteokinematic analysis was conducted for 6 degrees of freedom kinematics. Cartilage arthrokinematic data, derived from magnetic resonance imaging\u2013based cartilage models, were evaluated for tibiofemoral contact location, contact overlap, contact path, and excursion.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      Compared with the contralateral knee, the ACLR+M knee underwent less flexion during landing (\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; .001) and lunging (\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      = .04). It also exhibited increased anterior tibial translation during landing (\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      = .01) and pivoting (\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      = .002). We observed posterior shifts in contact location on the tibial cartilage surface and increased overlapping contact in both the medial and lateral compartments during landing and pivoting. The ACLR+M knee also exhibited increased anteroposterior excursion of the tibial contact path during lunging.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>ACLR+M was associated with alterations in osteokinematics and arthrokinematics in the surgical knee, suggesting that the surgical knee does not return to normal function during demanding dynamic activities at 1 to 2 years. This study provides novel in vivo evidence of joint abnormalities under functional loading conditions experienced during everyday activities and sports. These findings enhance our understanding of early biomechanical side-to-side deviations that may contribute to PTOA.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Clinical Relevance:<\/jats:title>\n                    <jats:p>Identifying abnormal knee joint mechanics at 1 to 2 years after ACLR+M during high-demand tasks emphasizes the need for targeted rehabilitation and monitoring strategies aimed at mitigating altered loading patterns that may accelerate PTOA development.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/23259671261422732","type":"journal-article","created":{"date-parts":[[2026,4,1]],"date-time":"2026-04-01T16:25:02Z","timestamp":1775060702000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Arthrokinematic Analysis of High-Impact and Large-Rotation Activities at 1 to 2 Years After Anterior Cruciate Ligament Reconstruction and Meniscal Surgery"],"prefix":"10.1177","volume":"14","author":[{"given":"Sadegh","family":"Khodabandeloo","sequence":"first","affiliation":[{"name":"Department of Mechanical Engineering, University of Vermont, Burlington, Vermont, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"John C.","family":"Ramsdell","sequence":"additional","affiliation":[{"name":"Department of Electrical and Biomedical Engineering, University of Vermont, Burlington, Vermont, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bruce D.","family":"Beynnon","sequence":"additional","affiliation":[{"name":"Department of Electrical and Biomedical Engineering, University of Vermont, Burlington, Vermont, USA"},{"name":"Department of Orthopaedics and Rehabilitation, University of Vermont, Burlington, Vermont, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mickey I.","family":"Krug","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics and Rehabilitation, University of Vermont, Burlington, Vermont, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Matthew","family":"Geeslin","sequence":"additional","affiliation":[{"name":"Department of Radiology, University of Vermont, Burlington, Vermont, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mathew J.","family":"Failla","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics and Rehabilitation, University of Vermont, Burlington, Vermont, USA"},{"name":"Department of Rehabilitation and Movement Science, University of Vermont, Burlington, Vermont, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michael J.","family":"DeSarno","sequence":"additional","affiliation":[{"name":"Biomedical Statistics Research Core, University of Vermont, Burlington, Vermont, 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