{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T11:45:06Z","timestamp":1790077506190,"version":"4.0.1"},"reference-count":34,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2011,10,7]],"date-time":"2011-10-07T00:00:00Z","timestamp":1317945600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Robotics Computer Surgery"],"published-print":{"date-parts":[[2011,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>The considerable variation in anatomical abnormalities of hip joints associated with different types of developmental dysplasia of hip (DDH) makes reconstruction in total hip arthroplasty (THA) difficult. It is desirable to create patient\u2010specific designs for THA procedures. In the cases of adult single DDH, an accuracy\u2010improved method has been developed for acetabular cup prosthesis implantation of hip arthroplasty.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>From October 2007 to November 2008, 22 patients with single DDH (according to the Crowe standard, all dysplasia hips were classified as type I) were scanned with spiral CT pre\u2010operatively. These patients scheduled for THA were randomly assigned to undergo either conventional THA (control group, <jats:italic>n<\/jats:italic>\u2009=\u200911) or navigation template implantation (NT group, <jats:italic>n<\/jats:italic>\u2009=\u200911). In the NT group, three\u2010dimensional (3D) CT pelvis image data were transferred to a computer workstation and 3D models of the hip were reconstructed using the Mimics software. The 3D models were then processed by the Imageware software. In brief, a template that best fitted the location and shape of the acetabular cup was \u2018reversely\u2019 built from the 3D model, the rotation centre of the pathological hip determined by mirroring that of the healthy site, and a guiding hole in the template was then designed. The navigational templates were manufactured using a rapid prototyping machine. These navigation templates guide acetabular component placement.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Based on the predetermined abduction angle 45\u00b0 and anteversion angle 18\u00b0, after 1\u2009year follow\u2010up, the NT group showed significantly smaller differences (1.6\u00b0\u2009\u00b1\u20090.4\u00b0, 1.9\u00b0\u2009\u00b1\u20091.1\u00b0) from the predetermined angles than those in the control group (5.8\u00b0\u2009\u00b1\u20092.9\u00b0, 3.9\u00b0\u2009\u00b1\u20092.5\u00b0) (<jats:italic>P<\/jats:italic>\u2009&lt;\u20090.05).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The template designs facilitated accurate placement of acetabular components in dysplasia of acetabulum. The hip's center of rotation in DDH could be established using computer\u2010aided design, which provides a useful method for the accurate location of prosthesis with a low cost\u2013performance ratio without excessive technical workload on the surgical team. Copyright \u00a9 2011 John Wiley &amp; Sons, Ltd.<\/jats:p><\/jats:sec>","DOI":"10.1002\/rcs.423","type":"journal-article","created":{"date-parts":[[2011,10,7]],"date-time":"2011-10-07T21:08:29Z","timestamp":1318021709000},"page":"469-474","source":"Crossref","is-referenced-by-count":66,"title":["Preliminary application of computer\u2010assisted patient\u2010specific acetabular navigational template for total hip arthroplasty in adult single development dysplasia of the hip"],"prefix":"10.1002","volume":"7","author":[{"given":"Yuan Z.","family":"Zhang","sequence":"first","affiliation":[{"name":"Department of Orthopaedics The Affiliated Hospital of Inner Mongolia Medical College  Hohhot People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bin","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics, First Affiliated Hospital Zhejiang University School of Medicine  Hangzhou People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sheng","family":"Lu","sequence":"additional","affiliation":[{"name":"Department of Orthopedics Kunming General Hospital  Kunming People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yong","family":"Yang","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics The Affiliated Hospital of Inner Mongolia Medical College  Hohhot People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jian M.","family":"Zhao","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics The Affiliated Hospital of Inner Mongolia Medical College  Hohhot People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rui","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics The Affiliated Hospital of Inner Mongolia Medical College  Hohhot People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yan B.","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Anatomy The NanHua University  Henyang People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guo X.","family":"Pei","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics, Xijing Hospital The Fourth Military Medical University  Xi'an People's Republic of 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