{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T14:17:52Z","timestamp":1791901072393,"version":"4.3.4"},"reference-count":28,"publisher":"SAGE Publications","issue":"10","license":[{"start":{"date-parts":[[2023,10,1]],"date-time":"2023-10-01T00:00:00Z","timestamp":1696118400000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Orthopaedic Journal of Sports Medicine"],"published-print":{"date-parts":[[2023,10]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>Multiligament knee injuries involving the medial side are common. When performing surgical reconstruction, use of the medial hamstrings (HS) as grafts remains controversial in this setting.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Purpose:<\/jats:title>\n                    <jats:p>To determine the role of the medial HS in stabilizing the valgus knee for different types of medial-sided knee injury.<\/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>A biomechanical study on 10 cadaveric knees was performed. Valgus load (force moment of 10 N\/m) was applied at 0\u00b0, 30\u00b0, and 60\u00b0 of flexion, and the resultant rotation was recorded using an optoelectronic motion analysis system. Measurements were repeated for 4 different knee states: intact knee, superficial medial collateral ligament (sMCL) injury, deep medial collateral ligament (dMCL) injury, and posterior oblique ligament (POL) injury. For each state, 4 loading conditions (+ loaded; \u2013 unloaded) of the semitendinosus (ST) and gracilis (GRA) tendons were tested: ST+\/GRA+, ST+\/GRA\u2013, ST\u2013\/GRA+, and ST\u2013\/GRA\u2013.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>At 0\u00b0 of flexion, combined unloading of the ST and GRA (ST\u2013\/GRA\u2013) increased valgus laxity on the intact knee compared with the ST+\/GRA+ condition ( P &lt; .05). For all medial-sided injury states (isolated sMCL; combined sMCL and dMCL; and combined sMCL, dMCL, and POL damage), ST\u2013\/GRA\u2013 increased valgus laxity at 0\u00b0 and 30\u00b0 of flexion versus ST+\/GRA+ ( P &lt; .05 for all). The absolute value of valgus laxity increased with the severity of medial-sided ligament injury. Isolated ST unloading increased valgus laxity for the intact knee and the MCL-injured knee (combined sMCL and dMCL) at 0\u00b0 of flexion ( P &lt; .05 vs ST+\/GRA+). Isolated unloading of the GRA had no effect on valgus knee stability.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>The medial HS tendons contributed to the stabilization of the knee in valgus, and this was even more important when the medial side was severely affected (POL damage). This stabilizing effect was greater between 0\u00b0 and 30\u00b0, in which the POL is the main valgus stabilizer.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Clinical Relevance:<\/jats:title>\n                    <jats:p>When deciding on graft selection for multiligament knee injury reconstruction, the surgeon should be aware of the effect of harvesting the medial HS tendon on valgus laxity.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/23259671231202767","type":"journal-article","created":{"date-parts":[[2023,10,12]],"date-time":"2023-10-12T07:47:45Z","timestamp":1697096865000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":17,"title":["Contribution of the Medial Hamstrings to Valgus Stability of the Knee"],"prefix":"10.1177","volume":"11","author":[{"given":"Pierre-Henri","family":"Vermorel","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, University Hospital Centre of Saint-\u00c9tienne, Saint-\u00c9tienne, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rodolphe","family":"Testa","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, University Hospital Centre of Saint-\u00c9tienne, Saint-\u00c9tienne, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Antonio","family":"Klasan","sequence":"additional","affiliation":[{"name":"AUVA UKH Steiermark, Graz, Austria"},{"name":"Johannes-Kepler University, Linz, Austria"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sven E.","family":"Putnis","sequence":"additional","affiliation":[{"name":"Bristol Royal Infirmary, University Hospitals Bristol & Weston NHS Foundation Trust, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"R\u00e9mi","family":"Philippot","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, University Hospital Centre of Saint-\u00c9tienne, Saint-\u00c9tienne, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bertrand","family":"Sonnery-Cottet","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery and Sports Medicine, Centre Orthop\u00e9dique Santy, FIFA Medical Centre of Excellence, Groupe Ramsay-Generale de Sante, H\u00f4pital Priv\u00e9 Jean Mermoz, Lyon, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas","family":"Neri","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, University Hospital Centre of Saint-\u00c9tienne, Saint-\u00c9tienne, France"},{"name":"Inter-University Laboratory of Human Movement Science, University Lyon\u2013University Jean-Monnet Saint-\u00c9tienne, Saint-\u00c9tienne, France"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2023,10,12]]},"reference":[{"key":"bibr1-23259671231202767","doi-asserted-by":"publisher","DOI":"10.1016\/j.eats.2021.10.019"},{"key":"bibr2-23259671231202767","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-021-06443-9"},{"key":"bibr3-23259671231202767","doi-asserted-by":"publisher","DOI":"10.1007\/s00402-016-2497-6"},{"key":"bibr4-23259671231202767","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-014-3478-3"},{"key":"bibr5-23259671231202767","doi-asserted-by":"publisher","DOI":"10.1055\/s-0034-1381961"},{"key":"bibr6-23259671231202767","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.RVW.17.00004"},{"key":"bibr7-23259671231202767","doi-asserted-by":"publisher","DOI":"10.1302\/2058-5241.6.200127"},{"key":"bibr8-23259671231202767","doi-asserted-by":"publisher","DOI":"10.1302\/2058-5241.5.190049"},{"key":"bibr9-23259671231202767","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2018.10.114"},{"key":"bibr10-23259671231202767","doi-asserted-by":"publisher","DOI":"10.1177\/0363546509333852"},{"key":"bibr11-23259671231202767","doi-asserted-by":"publisher","DOI":"10.1115\/1.3138397"},{"key":"bibr12-23259671231202767","doi-asserted-by":"publisher","DOI":"10.1177\/0363546516677728"},{"key":"bibr13-23259671231202767","doi-asserted-by":"publisher","DOI":"10.1177\/0363546517732743"},{"key":"bibr14-23259671231202767","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.F.01176"},{"key":"bibr15-23259671231202767","doi-asserted-by":"publisher","DOI":"10.1016\/s0021-9290(98)00181-x"},{"key":"bibr16-23259671231202767","doi-asserted-by":"publisher","DOI":"10.1016\/j.knee.2006.01.005"},{"key":"bibr17-23259671231202767","doi-asserted-by":"publisher","DOI":"10.5435\/00124635-200903000-00004"},{"key":"bibr18-23259671231202767","doi-asserted-by":"publisher","DOI":"10.1177\/0363546516673616"},{"key":"bibr19-23259671231202767","doi-asserted-by":"publisher","DOI":"10.1177\/0363546518825340"},{"key":"bibr20-23259671231202767","unstructured":"Naqvi U, Sherman A l. 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