ArticleJournal of experimental orthopaedics2025
The Rosenberg view outperforms conventional AP radiographs in detecting medial knee osteoarthritis: A matched-pair analysis using intraoperative cartilage status.
Article in Journal of experimental orthopaedics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- The Rosenberg view outperforms conventional AP radiographs in detecting medial knee osteoarthritis: A matched-pair analysis using intraoperative cartilage status.Journal of experimental orthopaedics · 2025Article
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6 authors.
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Abstract
Purpose: This study aimed to compare the diagnostic performance of the Rosenberg view against conventional anteroposterior (AP) radiographs for detecting knee osteoarthritis (OA). Using intraoperative cartilage status as the gold standard, the diagnostic accuracy of both views was evaluated in a matched-pair analysis. It was hypothesised that the Rosenberg view would demonstrate superior sensitivity in detecting cartilage wear, particularly in the medial compartment. Methods: This retrospective matched-pair analysis evaluated 150 knee OA patients undergoing arthroplasty with same-day preoperative AP and Rosenberg radiographs (≤1 week before surgery). Two blinded observers independently graded medial and lateral compartments using the KL scale (1-4), with interobserver reliability assessed via weighted kappa coefficients. Intraoperative cartilage status ('worn'/'unworn') served as the reference standard. Statistical analysis included Firth's penalised logistic regression (to address complete separation), ROC curve analysis with DeLong's test for AUC comparisons and performance metrics at optimal probability thresholds determined by Youden's index. Results: The cohort (93 females, 57 males; mean age 65.6 ± 8.8 years; mean BMI 30.2 ± 5.44 kg/m²) demonstrated superior diagnostic performance for Rosenberg views in medial compartment assessment (AUC 0.976, 95% CI 0.96-0.99 vs AP 0.899, Conclusions: These findings support the consideration of the Rosenberg view in routine diagnostic workflows for knee OA to improve detection of medial compartment disease and better inform treatment planning. Level of Evidence: Level II, retrospective sub-analysis of a randomised controlled trial.
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