ArticleBone & joint open2020
Reliability of the Oswestry-Bristol Classification for trochlear dysplasia: expanded characteristics.
Article in Bone & joint open, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
7 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Inconsistent repeatability of the Dejour classification of trochlear dysplasia due to the variability of imaging modalities: a systematic review.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Pooled it
- Trochleoplasty for patellofemoral instability: current concepts.Spartan medical research journal · 2026Article
- [Radiological diagnostics of patellofemoral instability and patellar dislocation].Radiologie (Heidelberg, Germany) · 2024Review
- Patellar Tracking: An Old Problem with New Insights.Radiographics : a review publication of the Radiological Society of North America, Inc · 2023Article
- Two-type classification system for femoral trochlear dysplasia in recurrent patellar instability based on three-dimensional morphology.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Article
- Radiographic Evaluation of Pediatric Patients with Patellofemoral Instability.Current reviews in musculoskeletal medicine · 2022Review
- Medial condyle hypoplasia in adolescent and young adult patients with trochlear dysplasia: a retrospective study.Radiologia brasileiraArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
aimsThe Oswestry-Bristol Classification (OBC) was recently described as an MRI-based classification tool for the femoral trochlear. The authors demonstrated better inter- and intraobserver agreement compared to the Dejour classification. As the OBC could potentially provide a very useful MRI-based grading system for trochlear dysplasia, it was the aim to determine the inter- and intraobserver reliability of the classification system from the perspective of the non-founder.
methodsTwo orthopaedic surgeons independently assessed 50 MRI scans for trochlear dysplasia and classified each according to the OBC. Both observers repeated the assessments after six weeks. The inter- and intraobserver agreement was determined using Cohen's kappa statistic and S-statistic nominal and linear weights.
resultsThe OBC with grading into four different trochlear forms showed excellent inter- and intraobserver agreement with a mean kappa of 0.78.
conclusionThe OBC is a simple MRI-based classification system with high inter- and intraobserver reliability. It could present a useful tool for grading the severity of trochlear dysplasia in daily practice.Cite this article:
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.