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Each model was transformed to a position that represents the anteroposterior, Meyer lateral, 45\u00b0 Dunn, modified false\u2010profile, Espi\u00e9 frog\u2010leg, modified 45\u00b0 Dunn, frog\u2010leg lateral, cross\u2010table, 90\u00b0 Dunn, and false\u2010profile views. The position on the head\u2010neck junction visualized from each view was identified on the surfaces. This position was then quantified by a clock face generated on the plane of the head\u2010neck junction, in which the 12\u2010o'clock position indicated the superior head\u2010neck junction and the 3\u2010o'clock position indicated the anterior head\u2010neck junction. The mean visualized clock\u2010face position was calculated for all subjects. Analysis was repeated to account for variability in femoral version. A general linear model with repeated measures was used to compare each radiographic view and anteversion angle.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Each radiographic view provided visualization of the mean clock\u2010face position as follows: anteroposterior view, 12:01; Meyer lateral view, 1:08; 45\u00b0 Dunn view, 1:40; modified false\u2010profile view, 2:01; Espi\u00e9 frog\u2010leg view, 2:14; modified 45\u00b0 Dunn view, 2:35; frog\u2010leg lateral view, 2:45; cross\u2010table view, 3:00; 90\u00b0 Dunn view, 3:13; and false\u2010profile view, 3:44. Each view visualized a different position on the clock face (all\n                      <jats:italic>P<\/jats:italic>\n                      &lt; .001). Increasing simulated femoral anteversion by 10\u00b0 changed the visualized position of the head\u2010neck junction to a more clockwise position (range, 0:07 to 0:29; all\n                      <jats:italic>P<\/jats:italic>\n                      &lt; .001), whereas decreasing anteversion by 10\u00b0 visualized a more counterclockwise position (range, \u20130:23 to \u20130:08; all\n                      <jats:italic>P<\/jats:italic>\n                      &lt; .001).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Ten common radiographic views used to identify cam morphology visualized different clock\u2010face positions of the head\u2010neck junction. Our data will help clinicians to understand the position of the head\u2010neck junction visualized for each radiographic view and make educated decisions in the selection of radiographs acquired in the clinic.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Clinical Relevance<\/jats:title>\n                    <jats:p>Our findings will aid clinicians in choosing a set of radiographs to capture cam morphology in the assessment of patients with hip pain.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1016\/j.arthro.2018.12.031","type":"journal-article","created":{"date-parts":[[2019,5,8]],"date-time":"2019-05-08T09:39:39Z","timestamp":1557308379000},"page":"1796-1806","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":33,"title":["Do Your Routine Radiographs to Diagnose Cam Femoroacetabular Impingement Visualize the Region of the Femoral Head\u2010Neck Junction You Intended?"],"prefix":"10.1002","volume":"35","author":[{"given":"Keisuke","family":"Uemura","sequence":"first","affiliation":[{"name":"Department of Orthopaedics University of Utah Salt Lake City Utah U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Penny R.","family":"Atkins","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics University of Utah Salt Lake City Utah U.S.A."},{"name":"Department of Bioengineering University of Utah Salt Lake City Utah U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrew E.","family":"Anderson","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics University of Utah Salt Lake City Utah U.S.A."},{"name":"Department of Bioengineering University of Utah Salt Lake City Utah U.S.A."},{"name":"Scientific Computing and Imaging Institute University of Utah Salt Lake City Utah U.S.A."},{"name":"Department of Physical Therapy University of Utah Salt Lake City Utah U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stephen K.","family":"Aoki","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics University of Utah Salt Lake City Utah U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2019,5,6]]},"reference":[{"key":"e_1_2_3_2_2","doi-asserted-by":"publisher","DOI":"10.1038\/nrrheum.2013.114"},{"key":"e_1_2_3_3_2","doi-asserted-by":"publisher","DOI":"10.1002\/art.39929"},{"key":"e_1_2_3_4_2","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports-2016-096743"},{"key":"e_1_2_3_5_2","doi-asserted-by":"publisher","DOI":"10.1093\/jhps\/hnx020"},{"key":"e_1_2_3_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejrad.2010.10.016"},{"key":"e_1_2_3_7_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00402-017-2793-9"},{"key":"e_1_2_3_8_2","doi-asserted-by":"publisher","DOI":"10.1007\/s11999-012-2510-5"},{"key":"e_1_2_3_9_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-016-4046-9"},{"key":"e_1_2_3_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2017.10.026"},{"key":"e_1_2_3_11_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jbiomech.2015.04.022"},{"key":"e_1_2_3_12_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546517712990"},{"key":"e_1_2_3_13_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.gaitpost.2016.09.011"},{"key":"e_1_2_3_14_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.gaitpost.2017.03.033"},{"key":"e_1_2_3_15_2","doi-asserted-by":"publisher","DOI":"10.1007\/s10439-015-1522-1"},{"key":"e_1_2_3_16_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.gaitpost.2018.01.016"},{"key":"e_1_2_3_17_2","doi-asserted-by":"publisher","DOI":"10.1002\/jor.23468"},{"key":"e_1_2_3_18_2","doi-asserted-by":"publisher","DOI":"10.1007\/s10439-013-0762-1"},{"key":"e_1_2_3_19_2","doi-asserted-by":"publisher","DOI":"10.1097\/CORR.0000000000000462"},{"key":"e_1_2_3_20_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.crad.2014.06.009"},{"key":"e_1_2_3_21_2","doi-asserted-by":"publisher","DOI":"10.1123\/jab.2013-0112"},{"key":"e_1_2_3_22_2","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.H.00756"},{"key":"e_1_2_3_23_2","doi-asserted-by":"publisher","DOI":"10.1097\/01.blo.0000201168.72388.24"},{"key":"e_1_2_3_24_2","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.34B2.181"},{"key":"e_1_2_3_25_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.otsr.2014.08.003"},{"key":"e_1_2_3_26_2","doi-asserted-by":"publisher","DOI":"10.1097\/BLO.0b013e3180f60b53"},{"key":"e_1_2_3_27_2","doi-asserted-by":"publisher","DOI":"10.1177\/112070000101100104"},{"key":"e_1_2_3_28_2","first-page":"643","article-title":"False profile of the pelvis. 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