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The objective of this study was to determine whether implant and anatomic registrations could be used in a computer model (LifeMOD\/KneeSIM, LifeModeler, Inc., San Clemente, California) to show differences in the resulting contact patterns of the medial and lateral condyles of the polyethylene insert. The simulations included tibiofemoral and patellofemoral contact, passive soft tissue (medial and lateral collateral, and posterior cruciate ligaments, as well as the capsular tissues), and active muscle elements (quadriceps and hamstrings). Components of a fixed-bearing cruciate-retaining total knee (Columbus knee system; B. Braun Aesculap, Tuttlingen, Germany) were imported into the model. The systems were subjected to one 60-second cycle of a lunge. Both the femoral and the tibial components were positioned in 5\u00b0 of internal or external rotation in varying combinations and the resulting kinematics analyzed. The resulting kinematics showed variations in anteroposterior translation of the lateral and medial femoral condyles that resembled several of those reported in the literature for individual patients with a cruciate-retaining knee implant system.<\/jats:p>","DOI":"10.3928\/01477447-20100510-57","type":"journal-article","created":{"date-parts":[[2010,10,18]],"date-time":"2010-10-18T20:07:47Z","timestamp":1287432467000},"page":"71-75","source":"Crossref","is-referenced-by-count":14,"title":["Computer Modeling to Predict Effects of Implant Malpositioning During TKA"],"prefix":"10.3928","volume":"33","author":[{"given":"William M.","family":"Mihalko","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"John L.","family":"Williams","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"2308","reference":[{"key":"e_1_3_1_2_2","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.F.00222"},{"key":"e_1_3_1_3_2","doi-asserted-by":"publisher","DOI":"10.1007\/s11999-009-1119-9"},{"issue":"5","key":"e_1_3_1_4_2","first-page":"413","article-title":"Outcomes of total joint arthroplasty in academic versus community hospitals","volume":"52","author":"Gandhi R","year":"2009","unstructured":"Gandhi R, Tso P, Davis A, Mahomed NN. Outcomes of total joint arthroplasty in academic versus community hospitals. Can J Surg. 2009; 52(5):413\u2013416.","journal-title":"Can J Surg"},{"key":"e_1_3_1_5_2","doi-asserted-by":"publisher","DOI":"10.1186\/ar2811"},{"key":"e_1_3_1_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arth.2008.02.018"},{"key":"e_1_3_1_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jbiomech.2004.02.024"},{"key":"e_1_3_1_8_2","doi-asserted-by":"publisher","DOI":"10.1097\/00003086-200111000-00006"},{"key":"e_1_3_1_9_2","doi-asserted-by":"publisher","DOI":"10.1097\/00003086-200011000-00010"},{"key":"e_1_3_1_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.clinbiomech.2005.03.014"},{"key":"e_1_3_1_11_2","doi-asserted-by":"publisher","DOI":"10.1097\/00003086-199811000-00021"},{"key":"e_1_3_1_12_2","doi-asserted-by":"publisher","DOI":"10.1097\/00003086-200211000-00003"},{"issue":"321","key":"e_1_3_1_13_2","first-page":"168","article-title":"The anteroposterior axis for femoral rotational alignment in valgus total knee arthroplasty","author":"Whiteside LA","year":"1995","unstructured":"Whiteside LA, Arima J. The anteroposterior axis for femoral rotational alignment in valgus total knee arthroplasty. Clin Orthop Relat Res. 1995; (321):168\u2013172.","journal-title":"Clin Orthop Relat Res"},{"key":"e_1_3_1_14_2","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.G.00996"},{"key":"e_1_3_1_15_2","article-title":"Rotational references for total knee arthroplasty tibial components change with level of resection [published online ahead of print March 30, 2010]","author":"Graw BP","unstructured":"Graw BP, Harris AH, Tripuraneni KR, Giori NJ. Rotational references for total knee arthroplasty tibial components change with level of resection [published online ahead of print March 30, 2010]. Clin Orthop Relat Res.","journal-title":"Clin Orthop Relat Res"},{"key":"e_1_3_1_16_2","doi-asserted-by":"publisher","DOI":"10.1007\/s11999-008-0452-8"},{"key":"e_1_3_1_17_2","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.90B8.19905"},{"key":"e_1_3_1_18_2","doi-asserted-by":"publisher","DOI":"10.1097\/01.blo.0000136835.40566.d9"},{"key":"e_1_3_1_19_2","doi-asserted-by":"publisher","DOI":"10.1016\/0021-9290(88)90146-7"},{"key":"e_1_3_1_20_2","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.D.03028"},{"key":"e_1_3_1_21_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.clinbiomech.2009.09.009"},{"key":"e_1_3_1_22_2","article-title":"In vivo comparison of knee kinematics before and after high-flexion posterior cruciate-retaining total knee arthroplasty [published online ahead of print September 1, 2009]","author":"Kitagawa A","unstructured":"Kitagawa A, Tsumura N, Chin T, Gamada K, Banks SA, Kurosaka M. In vivo comparison of knee kinematics before and after high-flexion posterior cruciate-retaining total knee arthroplasty [published online ahead of print September 1, 2009]. 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