Interobserver and intraobserver reliability and validity of the Vancouver classification system of periprosthetic femoral fractures after hip arthroplasty.
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Affiliation
Department of Trauma and Orthopaedics, Our Lady of Lourdes Hospital, Drogheda, Co., Louth, Republic of Ireland.Issue Date
2012-06MeSH
AgedAged, 80 and over
Arthroplasty, Replacement, Hip
Classification
Female
Femoral Fractures
Femur
Hip Joint
Hip Prosthesis
Humans
Male
Middle Aged
Observer Variation
Periprosthetic Fractures
Reproducibility of Results
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Interobserver and intraobserver reliability and validity of the Vancouver classification system of periprosthetic femoral fractures after hip arthroplasty. 2012, 27 (6):1047-50 J ArthroplastyJournal
The Journal of arthroplastyDOI
10.1016/j.arth.2011.11.021PubMed ID
22425302Abstract
The Vancouver classification system of periprosthetic fractures has been revalidated in this study, using the radiographs of 45 patients. Three consultants and 3 trainees reviewed the radiographs independently, on 2 separate occasions, at least 2 weeks apart. Interobserver and intraobserver agreement and validity were analyzed, using weighted κ statistics. The mean κ value for interobserver agreement was found to be 0.69 (0.63-0.72) for consultants and 0.61 (0.56-0.65) for the trainees, both representing substantial agreement. Intraobserver κ values ranged from 0.74 to 0.90, showing substantial agreement. Validity analysis of 37 type B cases revealed 81% agreement within B1, B2, and B3 subgroups with a κ value of 0.68 (substantial agreement). This study has reconfirmed the reliability and validity of the Vancouver classification while it also emphasizes the intraoperative assessment of implant stability.Item Type
ArticleLanguage
enISSN
1532-8406ae974a485f413a2113503eed53cd6c53
10.1016/j.arth.2011.11.021
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