{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,25]],"date-time":"2026-10-25T21:06:53Z","timestamp":1792962413991,"version":"4.5.0"},"reference-count":19,"publisher":"SAGE Publications","issue":"5","license":[{"start":{"date-parts":[[2010,5,1]],"date-time":"2010-05-01T00:00:00Z","timestamp":1272672000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Foot Ankle Int."],"published-print":{"date-parts":[[2010,5]]},"abstract":"<jats:p> Background: There is limited literature available to assess the impact of talar component rotation on total ankle contact biomechanics. Materials and Methods: Six male cadaveric below-knee specimens were implanted with Agility\u00ae total ankles. The sequence of talar rotation for each specimen was randomized between: Neutral, 7.5 degrees internal and 7.5 degrees external rotation. Contact pressure was measured using Tekscan ankle sensors during sequential static axial loadings and 10 simulated dynamic strides under 650 N axial load. Results: The peak pressure (PP) increased for the internally (PP<jats:sub>static<\/jats:sub> = 7.0 \u00b1 0.27 MPa (mean \u00b1 SD), p &lt; 0.001; PP<jats:sub>dynamic<\/jats:sub> = 7.8 \u00b1 0.22 MPa, p = 0.001) and externally rotated talar component positions (PP<jats:sub>static<\/jats:sub> = 6.2 \u00b1 0.22 MPa, p = 0.011; PP<jats:sub>dynamic<\/jats:sub> = 7.6 \u00b1 0.29 MPa, p = 0.004) as compared to neutral (PP<jats:sub>static<\/jats:sub> = 5.5 \u00b1 0.13 MPa; PP<jats:sub>dynamic<\/jats:sub> = 6.3 \u00b1 0.11 MPa). The contact area under 650 N load was reduced for both talar component internal (97.38 \u00b1 17.7 mm<jats:sup>2<\/jats:sup>, p = 0.001) and external rotation (152.66 \u00b1 16.8 mm<jats:sup>2<\/jats:sup>, p = 0.022) as compared to neutral (190.02 \u00b1 13.8 mm<jats:sup>2<\/jats:sup>). There was a significant rotational torque for the malrotated talar components as compared to neutral, that increased with axial loading ( p = 0.044). Conclusion: Near the extremes of talar malrotation, there was a consistent change from a continuous tibiotalar contact area to a pattern of two-point contact; the orientation of which opposed the direction of talar component malrotation. Talar component malrotation resulted in: increased peak pressure, decreased contact area and increased rotational torque that resisted the malrotation. Clinical Relevance: Talar component malrotation may contribute to premature polyethylene wear as well as potential talar loosening secondary to the rotational torque generated as the geometry of the prosthesis attempts to seek congruency. <\/jats:p>","DOI":"10.3113\/fai.2010.0404","type":"journal-article","created":{"date-parts":[[2010,5,18]],"date-time":"2010-05-18T18:57:11Z","timestamp":1274209031000},"page":"404-411","source":"Crossref","is-referenced-by-count":78,"title":["Impact of Talar Component Rotation on Contact Pressure after Total Ankle Arthroplasty: A Cadaveric Study"],"prefix":"10.1177","volume":"31","author":[{"given":"Tomiko","family":"Fukuda","sequence":"first","affiliation":[{"name":"Chicago, IL"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Steven L.","family":"Haddad","sequence":"additional","affiliation":[{"name":"Chicago, IL"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yupeng","family":"Ren","sequence":"additional","affiliation":[{"name":"Chicago, IL"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Li-Qun","family":"Zhang","sequence":"additional","affiliation":[{"name":"Chicago, IL"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2010,5,1]]},"reference":[{"key":"bibr1-FAI.2010.0404","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-198668070-00010"},{"key":"bibr2-FAI.2010.0404","doi-asserted-by":"publisher","DOI":"10.1097\/00003086-199811000-00021"},{"key":"bibr3-FAI.2010.0404","doi-asserted-by":"publisher","DOI":"10.1016\/j.apmr.2003.11.041"},{"key":"bibr4-FAI.2010.0404","doi-asserted-by":"publisher","DOI":"10.1097\/01.blo.0000132180.69464.84"},{"key":"bibr5-FAI.2010.0404","doi-asserted-by":"publisher","DOI":"10.1097\/00003086-200111000-00029"},{"key":"bibr6-FAI.2010.0404","doi-asserted-by":"publisher","DOI":"10.1097\/00003086-200111000-00015"},{"key":"bibr7-FAI.2010.0404","doi-asserted-by":"publisher","DOI":"10.5435\/00124635-200205000-00002"},{"key":"bibr8-FAI.2010.0404","doi-asserted-by":"publisher","DOI":"10.3113\/FAI.2007.0308"},{"key":"bibr9-FAI.2010.0404","doi-asserted-by":"publisher","DOI":"10.1016\/0304-4165(91)90270-Q"},{"key":"bibr10-FAI.2010.0404","unstructured":"10. Kurtz SM: The UHMWPE Handbook: Ultra-High Molecular Weight Polyethylene in Total Joint Replacement, Page 16"},{"issue":"3","key":"bibr11-FAI.2010.0404","first-page":"152","volume":"14","author":"Matsuda S","year":"2001","journal-title":"Am J Knee Surg"},{"key":"bibr12-FAI.2010.0404","doi-asserted-by":"publisher","DOI":"10.1016\/S0883-5403(98)80016-8"},{"key":"bibr13-FAI.2010.0404","doi-asserted-by":"publisher","DOI":"10.1097\/01.blo.0000132461.34725.a7"},{"key":"bibr14-FAI.2010.0404","volume-title":"Gait analysis: normal and pathological function; illustrated by Bill Schoneberger","author":"Perry J","year":"1992"},{"key":"bibr15-FAI.2010.0404","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-199810000-00002"},{"key":"bibr16-FAI.2010.0404","doi-asserted-by":"publisher","DOI":"10.1002\/jbm.820130612"},{"key":"bibr17-FAI.2010.0404","doi-asserted-by":"publisher","DOI":"10.1097\/01.blo.0000132463.80467.65"},{"key":"bibr18-FAI.2010.0404","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-200406000-00008"},{"key":"bibr19-FAI.2010.0404","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-200305000-00026"}],"container-title":["Foot &amp; Ankle International"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.3113\/FAI.2010.0404","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.3113\/FAI.2010.0404","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.3113\/FAI.2010.0404","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,3,11]],"date-time":"2025-03-11T04:34:15Z","timestamp":1741667655000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.3113\/FAI.2010.0404"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2010,5]]},"references-count":19,"journal-issue":{"issue":"5","published-print":{"date-parts":[[2010,5]]}},"alternative-id":["10.3113\/FAI.2010.0404"],"URL":"https:\/\/doi.org\/10.3113\/fai.2010.0404","relation":{},"ISSN":["1071-1007","1944-7876"],"issn-type":[{"value":"1071-1007","type":"print"},{"value":"1944-7876","type":"electronic"}],"subject":[],"published":{"date-parts":[[2010,5]]}}}