{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,15]],"date-time":"2026-03-15T21:02:52Z","timestamp":1773608572520,"version":"3.50.1"},"reference-count":39,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2011,10,3]],"date-time":"2011-10-03T00:00:00Z","timestamp":1317600000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2011,10,3]],"date-time":"2011-10-03T00:00:00Z","timestamp":1317600000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"},{"start":{"date-parts":[[2011,10,3]],"date-time":"2011-10-03T00:00:00Z","timestamp":1317600000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2011,10,3]],"date-time":"2011-10-03T00:00:00Z","timestamp":1317600000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"}],"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":[[2011,11]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>Using 3\u2010dimensional high\u2010resolution magnetic resonance imaging (MRI), we sought to compare femoral and tibial tunnel position and resultant graft obliquity with single\u2010bundle anterior cruciate ligament (ACL) reconstruction using transtibial (TT) or anteromedial (AM) portal femoral tunnel reaming techniques.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      Thirty patients were prospectively enrolled after primary, autogenous bone\u2013patellar tendon\u2013bone ACL reconstruction by 2 groups of high\u2010volume, fellowship\u2010trained sports medicine surgeons. With the TT technique, an external starting point was used to maximize graft obliquity and femoral footprint capture. By use of high\u2010resolution MRI and imaging analysis software, bilateral 3\u2010dimensional knee models were created, mirrored, and superimposed. Differences between centroids for each femoral and tibial insertion, as well as corresponding ACL\/graft obliquity, were evaluated with paired\n                      <jats:italic>t<\/jats:italic>\n                      tests and 2\u2010sided Mann\u2010Whitney nonparametric tests, with\n                      <jats:italic>P<\/jats:italic>\n                      &lt; .05 defined as significant.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      No significant differences were observed between groups in position of reconstructed femoral footprints. However, on the tibial side, AM centroids averaged 0.8 \u00b1 1.9 mm anterior to native ACL centroids, whereas the TT group centered 5.23 \u00b1 2.4 mm posterior to native ACL centroids (\n                      <jats:italic>P<\/jats:italic>\n                      &lt; .001). Sagittal obliquity was closely restored with the AM technique (mean, 52.2\u00b0\n                      <jats:italic>v<\/jats:italic>\n                      53.5\u00b0 for native ACL) but was significantly more vertical (mean, 66.9\u00b0) (\n                      <jats:italic>P<\/jats:italic>\n                      = .0001) for the TT group.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>In this clinical series, AM portal femoral tunnel reaming more accurately restored native ACL anatomy than the TT technique. Although both techniques can capture the native femoral footprint with similar accuracy, the TT technique requires significantly greater posterior placement of the tibial tunnel, resulting in decreased sagittal graft obliquity. When a tibial tunnel is drilled without the need to accommodate subsequent femoral tunnel reaming, more accurate tibial tunnel position and resultant sagittal graft obliquity are achieved.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence<\/jats:title>\n                    <jats:p>Level III, retrospective comparative study.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1016\/j.arthro.2011.07.007","type":"journal-article","created":{"date-parts":[[2011,10,1]],"date-time":"2011-10-01T18:36:30Z","timestamp":1317494190000},"page":"1511-1522","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":89,"title":["Comparison of Anterior Cruciate Ligament Tunnel Position and Graft Obliquity With Transtibial and Anteromedial Portal Femoral Tunnel Reaming Techniques Using High\u2010Resolution Magnetic Resonance Imaging"],"prefix":"10.1002","volume":"27","author":[{"given":"Andrea L.","family":"Bowers","sequence":"first","affiliation":[{"name":"Sports Medicine and Shoulder Service Hospital for Special Surgery New York New York"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Asheesh","family":"Bedi","sequence":"additional","affiliation":[{"name":"MedSport Department of Orthopaedic Surgery University of Michigan Ann Arbor Michigan U.S.A."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joseph D.","family":"Lipman","sequence":"additional","affiliation":[{"name":"Sports Medicine and Shoulder Service Hospital for Special Surgery New York New York"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hollis G.","family":"Potter","sequence":"additional","affiliation":[{"name":"Sports Medicine and Shoulder Service Hospital for Special Surgery New York New York"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Scott 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