作者: A.J. Kelly , M.B. Lee , N.S. Wong , E.J. Smith , I.D. Learmonth
DOI: 10.1016/S0883-5403(96)80104-5
关键词: Outcome assessment 、 Kappa 、 Total hip arthroplasty 、 Grading (education) 、 Radiology 、 Interobserver reproducibility 、 Reproducibility 、 Medicine 、 Radiography 、 Statistical analysis 、 Nuclear medicine
摘要: The first study of the reproducibility a widely accepted grading system for femoral cementation in total hip arthroplasty is reported. Sixty postoperative radiographs were graded on two occasions at least 2 weeks apart by experienced observers. test-retest rate was 60% observer 1 and 70% 2. interobserver varied between 60 63% different assessments. Between 5 6% cases differed more than one grade tests. Kappa statistical analysis confirmed that poor all cases. This cement system, even hands observers, has too high intraobserver error to recommend its use.