{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,11]],"date-time":"2026-05-11T12:34:51Z","timestamp":1778502891859,"version":"3.51.4"},"reference-count":24,"publisher":"Wiley","issue":"7-8","license":[{"start":{"date-parts":[[2025,4,11]],"date-time":"2025-04-11T00:00:00Z","timestamp":1744329600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["ANZ Journal of Surgery"],"published-print":{"date-parts":[[2025,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Total knee (TKA) and total hip arthroplasty (THA) can be definitive end\u2010stage procedures following hip and knee trauma. In Aotearoa, injury\u2010related costs are funded by the Accident Compensation Corporation (ACC). This study aims to understand the magnitude, characteristics and outcomes of post\u2010traumatic TKA and THA in Aotearoa.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Retrospective data from ACC and the New Zealand Joint Registry for post\u2010traumatic primary TKA and THA between 1st January 2000 and 31st December 2020 was analysed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Over 20\u2009years, 10\u2009179 primary TKA and 5611 primary THA were funded, totalling 918 million New Zealand Dollars. Social costs (weekly compensation and rehabilitation) exceeded medical costs (medical treatment, hospital, and surgical costs). Most individuals were European males between 55 and 65\u2009years of age at the time of surgery.<\/jats:p><jats:p>Following surgery, 21% TKA and 11% THA required more than 6\u2009months of workers' compensation, with risk factors being younger age (TKA RR 1.04, THA RR 1.03), male sex (TKA RR 1.12, THA RR 1.23), and heavy occupations (TKA RR 1.50, THA RR 1.57).<\/jats:p><jats:p>For TKA, 10\u2010year revision\u2010free implant survival was 88.7% (95% CI: 0.88\u20130.90) and for THA 77.7% (95% CI: 0.76\u20130.79), which is poorer than the 10\u2010year registry survivorship for arthroplasty performed for primary osteoarthritis of 95.7% for TKA (<jats:italic>P<\/jats:italic>\u2009&lt;\u20090.001, RR 1.03\u20131.05) and 94.1% for THA (<jats:italic>P<\/jats:italic>\u2009&lt;\u20090.001, RR 1.12\u20131.17).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Social costs contribute to a substantial economic burden in post\u2010traumatic lower limb arthroplasty. Targeted rehabilitation strategies are crucial to improving recovery and minimizing time off work.<\/jats:p><\/jats:sec>","DOI":"10.1111\/ans.70127","type":"journal-article","created":{"date-parts":[[2025,4,11]],"date-time":"2025-04-11T06:33:40Z","timestamp":1744353220000},"page":"1540-1545","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["The epidemiology, economic impact and outcomes of post\u2010traumatic primary total knee and total hip arthroplasty in <scp>Aotearoa<\/scp>, <scp>New Zealand<\/scp>"],"prefix":"10.1111","volume":"95","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1740-4071","authenticated-orcid":false,"given":"Katarina","family":"Sim","sequence":"first","affiliation":[{"name":"Department of Orthopaedics North Shore Hospital  Auckland New Zealand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mark","family":"Zhu","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics North Shore Hospital  Auckland New Zealand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alana","family":"Cavadino","sequence":"additional","affiliation":[{"name":"Department of Epidemiology and Biostatistics University of Auckland  Auckland New Zealand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Simon W","family":"Young","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics North Shore Hospital  Auckland New Zealand"},{"name":"Department of Surgery University of Auckland  Auckland New Zealand"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2025,4,11]]},"reference":[{"key":"e_1_2_8_2_1","first-page":"100","article-title":"Primary total knee arthroplasty in patients receiving workers' compensation benefits","volume":"48","author":"Petruccelli D","year":"2005","journal-title":"Can. 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