{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T07:20:23Z","timestamp":1777879223661,"version":"3.51.4"},"reference-count":71,"publisher":"SAGE Publications","issue":"8","license":[{"start":{"date-parts":[[2018,8,1]],"date-time":"2018-08-01T00:00:00Z","timestamp":1533081600000},"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":[[2018,8,1]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>An anterior cruciate ligament (ACL) rupture often occurs during rotational trauma to the knee and may be associated with damage to extracapsular knee rotation\u2013stabilizing structures such as the anterolateral ligament (ALL).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Purpose:<\/jats:title>\n                    <jats:p>To investigate ex vivo knee laxity in 6 degrees of freedom with and without ALL reconstruction as a supplement to ACL reconstruction.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Study Design:<\/jats:title>\n                    <jats:p>Controlled laboratory study.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>Cadaveric knees (N = 8) were analyzed using dynamic radiostereometry during a controlled pivotlike dynamic movement simulated by motorized knee flexion (0\u00b0 to 60\u00b0) with 4-N\u00b7m internal rotation torque. We tested the cadaveric specimens in 5 successive ligament situations: intact, ACL lesion, ACL + ALL lesion, ACL reconstruction, and ACL + ALL reconstruction. Anatomic single-bundle reconstruction methods were used for both the ACL and the ALL, with a bone-tendon quadriceps autograft and gracilis tendon autograft, respectively. Three-dimensional kinematics and articular surface interactions were used to determine knee laxity.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>For the entire knee flexion motion, an ACL + ALL lesion increased the mean knee laxity ( P &lt; .005) for internal rotation (2.54\u00b0), anterior translation (1.68 mm), and varus rotation (0.53\u00b0). Augmented ALL reconstruction reduced knee laxity for anterior translation ( P = .003) and varus rotation ( P = .047) compared with ACL + ALL\u2013deficient knees. Knees with ACL + ALL lesions had more internal rotation ( P &lt; .001) and anterior translation ( P &lt; .045) at knee flexion angles below 40\u00b0 and 30\u00b0, respectively, compared with healthy knees. Combined ACL + ALL reconstruction did not completely restore native kinematics\/laxity at flexion angles below 10\u00b0 for anterior translation and below 20\u00b0 for internal rotation ( P &lt; .035). ACL + ALL reconstruction was not found to overconstrain the knee joint.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>Augmented ALL reconstruction with ACL reconstruction in a cadaveric setting reduces internal rotation, varus rotation, and anterior translation knee laxity similar to knee kinematics with intact ligaments, except at knee flexion angles between 0\u00b0 and 20\u00b0.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Clinical Relevance:<\/jats:title>\n                    <jats:p>Patients with ACL injuries can potentially achieve better results with augmented ALL reconstruction along with ACL reconstruction than with stand-alone ACL reconstruction. Furthermore, dynamic radiostereometry provides the opportunity to examine clinical patients and compare the recontructed knee with the contralateral knee in 6 degrees of freedom.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/2325967118789699","type":"journal-article","created":{"date-parts":[[2018,8,10]],"date-time":"2018-08-10T10:35:03Z","timestamp":1533897303000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":31,"title":["Influence of the Anterolateral Ligament on Knee Laxity: A Biomechanical Cadaveric Study Measuring Knee Kinematics in 6 Degrees of Freedom Using Dynamic Radiostereometric Analysis"],"prefix":"10.1177","volume":"6","author":[{"given":"Emil Toft","family":"Nielsen","sequence":"first","affiliation":[{"name":"Orthopaedic Research Unit, Department of Orthopaedic Surgery, Aarhus University Hospital, Aarhus, Denmark."},{"name":"Department of Clinical Medicine, Aarhus University, Aarhus, Denmark."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kasper","family":"Stentz-Olesen","sequence":"additional","affiliation":[{"name":"Orthopaedic Research Unit, Department of Orthopaedic Surgery, Aarhus University Hospital, Aarhus, Denmark."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sepp","family":"de Raedt","sequence":"additional","affiliation":[{"name":"Orthopaedic Research Unit, Department of Orthopaedic Surgery, Aarhus University Hospital, Aarhus, Denmark."},{"name":"NRT X-RAY A\/S, Hasselager, Denmark."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter Bo","family":"J\u00f8rgensen","sequence":"additional","affiliation":[{"name":"Orthopaedic Research Unit, Department of Orthopaedic Surgery, Aarhus University Hospital, Aarhus, Denmark."},{"name":"Department of Clinical Medicine, Aarhus University, Aarhus, Denmark."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ole Gade","family":"S\u00f8rensen","sequence":"additional","affiliation":[{"name":"Department of Sports Traumatology, Aarhus University Hospital, Aarhus, Denmark."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bart","family":"Kaptein","sequence":"additional","affiliation":[{"name":"Biomechanics and Imaging Group, Department of Orthopaedic Surgery, Leiden University Medical Center, Leiden, the Netherlands."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michael Skipper","family":"Andersen","sequence":"additional","affiliation":[{"name":"Department of Materials and Production, Aalborg University, Aalborg, Denmark."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maiken","family":"Stilling","sequence":"additional","affiliation":[{"name":"Orthopaedic Research Unit, Department of Orthopaedic Surgery, Aarhus University Hospital, Aarhus, Denmark."},{"name":"Department of Clinical Medicine, Aarhus University, Aarhus, 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