{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,8]],"date-time":"2026-07-08T05:37:54Z","timestamp":1783489074429,"version":"3.55.0"},"reference-count":23,"publisher":"Wiley","issue":"7-8","license":[{"start":{"date-parts":[[2012,9,3]],"date-time":"2012-09-03T00:00:00Z","timestamp":1346630400000},"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":[[2013,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>While recent studies have shown patients with developmental dysplasia of the hip (<jats:styled-content style=\"fixed-case\">DDH<\/jats:styled-content>) undergoing total hip arthroplasty (<jats:styled-content style=\"fixed-case\">THA<\/jats:styled-content>) to achieve comparable post\u2010operative outcomes to patients with primary osteoarthritis (<jats:styled-content style=\"fixed-case\">OA<\/jats:styled-content>), it is unclear whether <jats:styled-content style=\"fixed-case\">DDH<\/jats:styled-content> patients display better or worse preoperative function than the general <jats:styled-content style=\"fixed-case\">THA<\/jats:styled-content> population. We aimed to compare the preoperative function and functional response to <jats:styled-content style=\"fixed-case\">THA<\/jats:styled-content> of <jats:styled-content style=\"fixed-case\">DDH<\/jats:styled-content> patients with <jats:styled-content style=\"fixed-case\">OA<\/jats:styled-content> patients.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Through a retrospective review of prospectively collected regional joint registry data, we compared the preoperative, 1\u2010year post\u2010operative and post\u2010operative change in disease\u2010specific (<jats:styled-content style=\"fixed-case\">O<\/jats:styled-content>xford hip score (<jats:styled-content style=\"fixed-case\">OHS<\/jats:styled-content>), Western <jats:styled-content style=\"fixed-case\">O<\/jats:styled-content>ntario and <jats:styled-content style=\"fixed-case\">M<\/jats:styled-content>ac<jats:styled-content style=\"fixed-case\">M<\/jats:styled-content>aster <jats:styled-content style=\"fixed-case\">U<\/jats:styled-content>niversities Osteoarthritis Index (<jats:styled-content style=\"fixed-case\">WOMAC<\/jats:styled-content>)) and general health (short form 12 physical health (<jats:styled-content style=\"fixed-case\">SF<\/jats:styled-content>\u201012 <jats:styled-content style=\"fixed-case\">PH<\/jats:styled-content>), mental health (<jats:styled-content style=\"fixed-case\">SF<\/jats:styled-content>\u201012 <jats:styled-content style=\"fixed-case\">MH<\/jats:styled-content>) scores) functional scores of 33 <jats:styled-content style=\"fixed-case\">DDH<\/jats:styled-content> patients and 968 <jats:styled-content style=\"fixed-case\">OA<\/jats:styled-content> patients undergoing primary <jats:styled-content style=\"fixed-case\">THA<\/jats:styled-content>.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The <jats:styled-content style=\"fixed-case\">DDH<\/jats:styled-content> group displayed substantially worse preoperative function than the <jats:styled-content style=\"fixed-case\">OA<\/jats:styled-content> group (mean <jats:styled-content style=\"fixed-case\">OHS<\/jats:styled-content> 11.2 versus 16.3 (<jats:italic><jats:styled-content style=\"fixed-case\">P<\/jats:styled-content><\/jats:italic> = 0.001), <jats:styled-content style=\"fixed-case\">WOMAC<\/jats:styled-content> 72.7 versus 60.6 (<jats:italic><jats:styled-content style=\"fixed-case\">P<\/jats:styled-content><\/jats:italic> &lt; 0.001), <jats:styled-content style=\"fixed-case\">SF<\/jats:styled-content>\u201012 <jats:styled-content style=\"fixed-case\">PH<\/jats:styled-content> 27.8 versus 28.9 (<jats:italic><jats:styled-content style=\"fixed-case\">P<\/jats:styled-content><\/jats:italic> = 0.433), <jats:styled-content style=\"fixed-case\">SF<\/jats:styled-content>\u201012 <jats:styled-content style=\"fixed-case\">MH<\/jats:styled-content> 35.5 versus 44.7 (<jats:italic><jats:styled-content style=\"fixed-case\">P<\/jats:styled-content><\/jats:italic> &lt; 0.001)). Functional response to <jats:styled-content style=\"fixed-case\">THA<\/jats:styled-content> at 1 year was significantly better in the <jats:styled-content style=\"fixed-case\">DDH<\/jats:styled-content> group than the <jats:styled-content style=\"fixed-case\">OA<\/jats:styled-content> group (mean score improvements: <jats:styled-content style=\"fixed-case\">OHS<\/jats:styled-content> 31.1 versus 24.6 (<jats:italic><jats:styled-content style=\"fixed-case\">P<\/jats:styled-content><\/jats:italic> &lt; 0.001), <jats:styled-content style=\"fixed-case\">WOMAC<\/jats:styled-content> 61.4 versus 47.2 (<jats:italic><jats:styled-content style=\"fixed-case\">P<\/jats:styled-content><\/jats:italic> &lt; 0.001), <jats:styled-content style=\"fixed-case\">SF<\/jats:styled-content>\u201012 <jats:styled-content style=\"fixed-case\">PH<\/jats:styled-content> 22.3 versus 16.5 (<jats:italic><jats:styled-content style=\"fixed-case\">P<\/jats:styled-content><\/jats:italic> = 0.003), <jats:styled-content style=\"fixed-case\">SF<\/jats:styled-content>\u201012 <jats:styled-content style=\"fixed-case\">MH<\/jats:styled-content> 18.4 versus 8.4 (<jats:italic><jats:styled-content style=\"fixed-case\">P<\/jats:styled-content><\/jats:italic> &lt; 0.001)).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Despite experiencing significantly worse preoperative function, <jats:styled-content style=\"fixed-case\">DDH<\/jats:styled-content> patients undergoing <jats:styled-content style=\"fixed-case\">THA<\/jats:styled-content> demonstrated superior early functional response to <jats:styled-content style=\"fixed-case\">OA<\/jats:styled-content> patients, with substantially greater improvements observed in all disease\u2010specific and general health outcome measures.<\/jats:p><\/jats:sec>","DOI":"10.1111\/j.1445-2197.2012.06198.x","type":"journal-article","created":{"date-parts":[[2012,9,4]],"date-time":"2012-09-04T00:11:30Z","timestamp":1346717490000},"page":"554-558","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["Functional response to total hip arthroplasty in patients with hip dysplasia"],"prefix":"10.1111","volume":"83","author":[{"given":"Matthew J.","family":"Boyle","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery Tauranga Public Hospital  Tauranga New Zealand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Neal","family":"Singleton","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery Tauranga Public Hospital  Tauranga New Zealand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christopher M. 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