{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,7]],"date-time":"2026-09-07T23:38:00Z","timestamp":1788824280375,"version":"build-2803163510"},"reference-count":23,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2009,1,1]],"date-time":"2009-01-01T00:00:00Z","timestamp":1230768000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2009,1,1]],"date-time":"2009-01-01T00:00:00Z","timestamp":1230768000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"},{"start":{"date-parts":[[2009,1,1]],"date-time":"2009-01-01T00:00:00Z","timestamp":1230768000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2009,1,1]],"date-time":"2009-01-01T00:00:00Z","timestamp":1230768000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"}],"funder":[{"DOI":"10.13039\/100000945","name":"Pittsburgh Foundation","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100000945","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["arthroscopyjournal.org","clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Arthroscopy"],"published-print":{"date-parts":[[2009,1]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>The purpose of this study was to compare the tibiofemoral contact area and pressure after single\u2010bundle (SB) and double\u2010bundle (DB) anterior cruciate ligament (ACL) reconstruction by use of 2 femoral and 2 tibial tunnels in intact cadaveric knees.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Tibiofemoral contact area and mean and maximum pressures were measured by pressure\u2010sensitive film (Fujifilm, Valhalla, NY) inserted between the tibia and femur. The knee was subjected to a 1,000\u2010N axial load by use of a uniaxial testing machine at 0\u00b0, 15\u00b0, 30\u00b0, and 45\u00b0 of flexion. Three conditions were evaluated: (1) intact ACL, (2) SB ACL reconstruction (n = 10 knees), and (3) DB ACL reconstruction (n = 9 knees).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>When compared with the intact knee, DB ACL reconstruction showed no significant difference in tibiofemoral contact area and mean and maximum pressures. SB ACL reconstruction had a significantly smaller contact area on the lateral and medial tibiofemoral joints at 30\u00b0 and 15\u00b0 of flexion. SB ACL reconstruction also had significantly higher mean pressures at 15\u00b0 of flexion on the medial tibiofemoral joint and at 0\u00b0 and 15\u00b0 of flexion on the lateral tibiofemoral joint, as well as significantly higher maximum pressures at 15\u00b0 of flexion on the lateral tibiofemoral joint.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>SB ACL reconstruction resulted in a significantly smaller tibiofemoral contact area and higher pressures. DB ACL more closely restores the normal contact area and pressure mainly at low flexion angles.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Clinical Relevance<\/jats:title>\n                    <jats:p>Our findings suggest that the changes in the contact area and pressures after SB ACL reconstruction may be one of the causes of osteoarthritis on long\u2010term follow\u2010up. DB ACL reconstruction may reduce the incidence of osteoarthritis by closely restoring contact area and pressure.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1016\/j.arthro.2008.08.014","type":"journal-article","created":{"date-parts":[[2008,12,25]],"date-time":"2008-12-25T05:29:47Z","timestamp":1230182987000},"page":"62-69","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":99,"title":["Tibiofemoral Joint Contact Area and Pressure After Single\u2010 and Double\u2010Bundle Anterior Cruciate Ligament Reconstruction"],"prefix":"10.1002","volume":"25","author":[{"given":"Yusuke","family":"Morimoto","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery School of Medicine University of Pittsburgh Pittsburgh Pennsylvania U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mario","family":"Ferretti","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery School of Medicine University of Pittsburgh Pittsburgh Pennsylvania U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Max","family":"Ekdahl","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery School of Medicine University of Pittsburgh Pittsburgh Pennsylvania U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Patrick","family":"Smolinski","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery School of Medicine University of Pittsburgh Pittsburgh Pennsylvania U.S.A."},{"name":"Department of Mechanical Engineering and Material Science University of Pittsburgh Pittsburgh Pennsylvania U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Freddie H.","family":"Fu","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery School of Medicine University of Pittsburgh Pittsburgh Pennsylvania 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