| Radiographic prediction of the results of long-term treatment with the Pavlik harness for developmental dislocation of the hip. | |
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MedLine Citation:
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PMID: 19571898 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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In 1957, Pavlik introduced the Pavlik harness as a useful treatment for developmental dislocation of the hip (DDH), and subsequent studies have documented favorable outcomes among patients treated with this device. However, there are only a few articles reporting how early radiographic measurements can be used to determine the prognosis after treatment with the Pavlik harness. In this study, 217 hips from 192 patients whose DDH treatment with the Pavlik harness was initiated before they were 6 months old and whose follow-up lasted at least 14 years (rate, 63.8%) were analyzed using measurements from radiographs taken immediately before and after harness treatment, and at 1, 2, and 3 years of age. Severin's classification at the final follow-up was I or II in 71.9% and III or IV in 28.1% of the hips, respectively. Avascular necrosis of the femoral head (AVN) was seen in 10% of the hips. Stepwise multiple regression analysis was performed to retrospectively determine whether any radiographic factors were related to the final classification as Severin I/II or III/IV. Receiver operating characteristic (ROC) curves were drawn for these factors, and a Wiberg OE angle (Point O was the middle point of the proximal metaphyseal border of the femur) of 2 degrees on the 3-year radiographs was found to be the most useful screening value for judging the acetabular development of DDH cases after treatment with a Pavlik harness, with a sensitivity of 71% a specificity of 93%, and a likelihood ratio of 10.1. |
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Authors:
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Takao Ohmori; Hirosuke Endo; Shigeru Mitani; Hiroshi Minagawa; Tomonori Tetsunaga; Toshifumi Ozaki |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Acta medica Okayama Volume: 63 ISSN: 0386-300X ISO Abbreviation: Acta Med. Okayama Publication Date: 2009 Jun |
Date Detail:
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Created Date: 2009-07-02 Completed Date: 2009-07-28 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0417611 Medline TA: Acta Med Okayama Country: Japan |
Other Details:
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Languages: eng Pagination: 123-8 Citation Subset: IM |
Affiliation:
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Department of Orthopaedic Surgery, Kochi Health Sciences Center, Kochi 781-8555, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Child Child, Preschool Hip Dislocation, Congenital / diagnosis, pathology, radiography*, therapy* Humans Infant Orthotic Devices* Prognosis ROC Curve Treatment Outcome |
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