Interobserver and Intraobserver Reliability and Validity of the Vancouver Classification System of Periprosthetic Femoral Fractures After Hip Arthroplasty
- 作者：Gohar A. Naqvi ; MRCSI ; MCh ; Shakoor A. Baig ; MRCSI ; Nasir Awan ; FRCS ; FRCSI (Orth)
- 关键词：arthroplasty ; periprosthetic ; fracture ; Vancouver ; reliability ; validity
- 刊名：The Journal of Arthroplasty
- 出版年：2012
- 期刊代码：326_08835403
- 类别：med
- 出版时间：June, 2012
- 卷：27
- 期：6
- 页码：1047-1050
- 文件大小：362 K
摘要
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 魏 statistics. The mean 魏 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 魏 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 魏 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.