{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,17]],"date-time":"2026-09-17T06:04:39Z","timestamp":1789625079952,"version":"build-2803163510"},"reference-count":24,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2026,9,16]],"date-time":"2026-09-16T00:00:00Z","timestamp":1789516800000},"content-version":"vor","delay-in-days":258,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/100008450","name":"Biomet","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100008450","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Advances in Orthopedics"],"published-print":{"date-parts":[[2026,1]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>CT\u2010based radiostereometric analysis (CT\u2010RSA) enables the measurement of early implant migration after Total Hip Arthroplasty (THA) with high precision and accuracy at a low effective radiation dose. This study is the first to investigate whether CT\u2010RSA might be comparable to conventional radiostereometric analysis(RSA) even for in vivo polyethylene liner wear measurements after THA.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To evaluate the comparability of CT\u2010based RSA and conventional RSA for measuring polyethylene liner wear after THA.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and Methods<\/jats:title>\n                    <jats:p>A total of 8 patients treated with a reverse hybrid THA (cemented cup and uncemented stem) were included from an ongoing RSA study. CT\u2010RSA and RSA images were taken immediately postoperatively and after 6\u2009years to compare measurements of the polyethylene wear. Double examinations were performed to estimate the precision of the CT\u2010RSA method.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Wear measured as median proximal translation of the femoral head into the cup at 6\u2009years was 0.10\u2009mm (IQR 0.02\u20130.17\u2009mm) as measured by RSA and 0.13\u2009mm (IQR 0.04\u20130.27\u2009mm) by CT\u2010RSA. Bland\u2013Altman plots indicated good agreement between the methods; for proximal wear the mean difference between methods was 0.04\u2009mm (limits of agreement \u22120.37\u20130.46\u2009mm). Proximal wear precision was 0.16\u2009mm for RSA and 0.15\u2009mm for CT\u2010RSA. The mean effective radiation dose was 0.2\u2009mSv per CT scan and 0.04\u2009mSv per RSA scan.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>This exploratory study suggests that CT\u2010RSA provides wear measurements comparable to those obtained with conventional RSA and may therefore represent a viable alternative for evaluating liner wear in future implant studies.<\/jats:p>\n                    <jats:p>\n                      <jats:bold>Trial Registration:<\/jats:bold>\n                      ClinicalTrials.gov: NCT02254980\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1155\/aort\/8544470","type":"journal-article","created":{"date-parts":[[2026,9,17]],"date-time":"2026-09-17T05:50:17Z","timestamp":1789624217000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["CT\u2010Based 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