Abstract：
BACKGROUND:Several radiologic parameters have been used to qualify an acetabular coverage in studies determining whether an association exists between acetabular dysplasia and osteoarthritis of hip. However, it is not known which parameter is optimum for these epidemiologic studies. We evaluate the reliability, validity, and robustness of the radiologic parameters of acetabular coverage used in these studies. METHODS:Center-edge angle (CEA), acetabular depth (AD), acetabular angle (AA), acetabular roof obliquity (ARO), and roof angle (RA) were evaluated. The components of intra- and interobserver reliability were tested. The correlations between each parameter were used to depict convergent validity. The robustness of the parameters to different projection (urogram), different definitions of the lateral acetabular margin, and a differing pelvic tilt were evaluated. RESULTS:The intra- and interobserver reliabilities of CEA, AD and AA ranged from 0.777 to 0.925. The CEA, AD and AA showed acceptable validity in the correlation. The AD on the urograms was 22.0% higher than those on the standing hip radiographs (P < 0.001). When the osteophyte was included in the definition of lateral acetabular margin, the CEA and AD increased significantly (P < 0.001). In simulating pelvic tilting, the AD increased significantly with the anterior pelvic tilt (P < 0.001). The ARO and RA showed poor clinical relevance. CONCLUSION:When measuring acetabular dysplasia, the AD is unsuitable for use, because it is not robust to different projection of beam and different pelvic tilts. Furthermore, one should consider that the CEA and AA are significantly influenced by different definitions of lateral acetabular margin.
journal_name
Arch Orthop Trauma Surgjournal_title
Archives of orthopaedic and trauma surgeryauthors
Lee YK,Chung CY,Koo KH,Lee KM,Kwon DG,Park MSdoi
10.1007/s00402-011-1279-4subject
Has Abstractpub_date
2011-09-01 00:00:00pages
1219-26issue
9eissn
0936-8051issn
1434-3916journal_volume
131pub_type
杂志文章abstract：AIM:Short-stemmed prostheses are increasingly regarded as implants of first choice in primary THA. As a result of the press-fit fixation in the femoral metaphysis, the occurrence of intraoperative fractures were reported. The aim of this study was to analyze the postoperative results of the Mayo short-stem prosthesis f...
journal_title：Archives of orthopaedic and trauma surgery
pub_type： 杂志文章
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更新日期：2011-12-01 00:00:00
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journal_title：Archives of orthopaedic and trauma surgery
pub_type： 杂志文章
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journal_title：Archives of orthopaedic and trauma surgery
pub_type： 杂志文章
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更新日期：2017-07-01 00:00:00
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journal_title：Archives of orthopaedic and trauma surgery
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journal_title：Archives of orthopaedic and trauma surgery
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journal_title：Archives of orthopaedic and trauma surgery
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journal_title：Archives of orthopaedic and trauma surgery
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journal_title：Archives of orthopaedic and trauma surgery
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journal_title：Archives of orthopaedic and trauma surgery
pub_type： 临床试验,杂志文章,随机对照试验
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journal_title：Archives of orthopaedic and trauma surgery
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更新日期：1998-01-01 00:00:00
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更新日期：2019-09-01 00:00:00
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journal_title：Archives of orthopaedic and trauma surgery
pub_type： 杂志文章
doi：10.1007/s004029900100
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journal_title：Archives of orthopaedic and trauma surgery
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journal_title：Archives of orthopaedic and trauma surgery
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journal_title：Archives of orthopaedic and trauma surgery
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更新日期：1995-01-01 00:00:00
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doi：10.1007/s004020050427
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更新日期：2017-01-01 00:00:00
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更新日期：2018-02-01 00:00:00
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更新日期：2015-03-01 00:00:00
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journal_title：Archives of orthopaedic and trauma surgery
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更新日期：2009-08-01 00:00:00
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journal_title：Archives of orthopaedic and trauma surgery
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更新日期：2002-02-01 00:00:00
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journal_title：Archives of orthopaedic and trauma surgery
pub_type： 杂志文章,评审
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更新日期：2008-10-01 00:00:00
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journal_title：Archives of orthopaedic and trauma surgery
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journal_title：Archives of orthopaedic and trauma surgery
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