ArticleBMC musculoskeletal disorders2026
Preoperative joint line convergence angle predicts correction accuracy after medial open-wedge high tibial osteotomy.
Article in BMC musculoskeletal disorders, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThis study investigated whether the preoperative joint line convergence angle (JLCA) influences post-operative correction accuracy and clinical results in knee osteoarthritis (KOA) patients undergoing medial open-wedge high tibial osteotomy (MOWHTO).
methodsA total of 169 knees that underwent MOWHTO were followed up for a minimum of 2 years. Preoperative and 2-year postoperative radiographic parameters were used to measure JLCA and the hip–knee–ankle angle (HKA). A post-operative HKA valgus of 0–4° was defined as accurate correction; values outside this range were considered abnormal. Clinical efficacy was evaluated with the Hospital for Special Surgery (HSS) knee score. Multivariate linear regression was performed to identify factors that affected the post-operative HSS scores.
resultsThe cohort comprised 169 knees (34 male, 135 female patients; mean disease duration 6.60 (5.80, 7.50) years; mean body mass index (BMI) 26.60 (24.80, 27.60) kg/m². In this study, 15 postoperative complications occurred (including 5 cases of delayed wound healing, 2 cases of surgical site infection, 5 cases of thromboembolic events, and 3 cases of lateral hinge fracture), all of which were successfully managed. Forty-two knees (24.85%) were classified as having abnormal correction; these knees had significantly higher pre-operative JLCA and post-operative HKA, and significantly lower post-operative HSS scores (P < 0.05). Receiver operating characteristic (ROC) curve analysis identified 3.8° as the optimal cut-off for pre-operative JLCA to predict abnormal correction (AUC = 0.858, 95% CI: 0.799–0.917, sensitivity = 0.857, specificity = 0.724, P < 0.01). Linear regression confirmed that age (P = 0.049) and pre-operative JLCA (P = 0.007) were independent predictors of the post-operative HSS scores.
conclusionsAn increased pre-operative JLCA is a critical determinant of post-operative radiological alignment and clinical prognosis. When pre-operative JLCA ≥ 3.8°, MOWHTO is more likely to result in inaccurate correction, and inferior clinical outcomes.
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.