ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2026
Estimation of the patient acceptable symptom state (PASS) threshold for the Banff Patellofemoral Instability Instrument 2.0.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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
1 citing paper in PubMed.
- Prospective comparative analysis from pre- to postoperative changes in Single Assessment Numeric Evaluation (SANE) for patellofemoral instability.Journal of experimental orthopaedics · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
Abstract
purposeThere is a paucity of studies reporting patient acceptable symptom state (PASS) thresholds for patient reported outcome measures validated for patellar instability. The aim of this study was to determine the PASS threshold for the Banff Patellofemoral Instability Instrument 2.0 (BPII) following surgery for recurrent patellar instability.
methodsPatients who underwent patellar stabilisation surgery between 2013 and 2022 were included if they were ≥16 years of age and had ≥12 months of follow-up. The participants completed the BPII and a dichotomous PASS anchor question. The PASS threshold was then calculated using both the adjusted predictive modelling method and receiver operating characteristic (ROC) analysis.
resultsComplete data were available for 218 knees of 182 patients, with a median follow-up time of 46 months. The PASS threshold was 62.4 (95% confidence interval [CI]: 58.8-65.9) using the adjusted predictive modelling method, and 66.3 (95% CI: 58.1-80.0) using ROC analysis. Overall, 173 patients (79.4%) reported satisfactory symptom states, while 72.9% and 70.6% achieved the respective PASS thresholds. The adjusted predictive modelling method yielded narrower 95% confidence intervals with minimal threshold variation across different approaches for handling bilateral cases compared to ROC analysis (1.3 vs. 8.1 points).
conclusionThe PASS threshold for BPII after patellar stabilisation surgery was 62.4 (out of 100 points). The adjusted predictive modelling method demonstrated superior precision and robustness in the PASS threshold calculation compared with the ROC analysis. This threshold provides a disease-specific reference for clinical decision making and research in patellofemoral instability. LEVEL OF EVIDENCE: Level III.
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.