Trial reportArchives of orthopaedic and trauma surgery2023
The minimal clinically important difference (MCID) of the Olerud Molander Ankle Score (OMAS) in patients with unstable ankle fracture.
Trial report in Archives of orthopaedic and trauma surgery, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 4 of them syntheses that pooled it.
What it found
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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
22 citing papers in PubMed, 4 syntheses or guidelines pooled it, 33 citations in OpenAlex.
- Early weight-bearing following surgical fixation of ankle fractures without trans-syndesmotic fixation: safety and early functional outcomes - a systematic review and meta-analysis.BMC musculoskeletal disorders · 2026Pooled it
- Early versus delayed weightbearing for postoperative ankle fractures: a systematic review and meta-analysis of randomized controlled trials.Archives of orthopaedic and trauma surgery · 2025Pooled it
- Rehabilitation for ankle fractures in adults.The Cochrane database of systematic reviews · 2024Pooled it
- Arthroscopically assisted versus open reduction internal fixation for ankle fractures: a systematic review and meta-analysis.Journal of orthopaedic surgery and research · 2023Pooled it
- The Minimal Clinically Important Difference of the American Orthopaedic Foot and Ankle Society Ankle Hindfoot Scale in Patients with Unstable Ankle Fracture.Clinics in orthopedic surgery · 2026Trial
- Is 2-week Cast Wearing Followed by 4-week Functional Bracing Superior to 6-week Cast Immobilization After Surgery for Ankle Fractures? A 2-year Follow-up of a Randomized Controlled Trial.Clinical orthopaedics and related research · 2025Trial
- Differences in gait analysis and clinical outcome after dynamic fixation or screw fixation in acute syndesmosis tear: a prospective randomized pilot study.Archives of orthopaedic and trauma surgery · 2024Trial
- Operative vs Nonoperative Management of Unstable Medial Malleolus Fractures: A Randomized Clinical Trial.JAMA network open · 2024Trial
- [Computer-assisted virtual pre-operative planning for the treatment of pilon fractures. A retrospective cohort study with propensity score matching].Orthopadie (Heidelberg, Germany) · 2026Article
- Exploring multiple minimal clinically important differences for the esophageal cancer scale QLICP-ES (V2.0) based on anchor-based and distribution-based methods.Scientific reports · 2026Article
- Dynamic Versus Stable Fixation of Distal Tibiofibular Joint Injuries: A Meta-Analysis Comparing Functional Outcomes.Cureus · 2026Review
- Minimally Invasive Intramedullary Fixation vs Plate Fixation of Distal Fibular Fractures in Elderly Patients: A Natural Experiment.Foot & ankle international · 2026Article
- A Functional Outcome on Different Surgical Treatment Modalities of Bimalleolar Fractures in Adults.Cureus · 2026Article
- Percutaneous Tibiotalocalcaneal Nailing in Fragility Ankle Fractures of the Elderly: A Single-Center Case Series.Cureus · 2025Article
- Weight-Bearing Versus Non-Weight-Bearing After Ankle Fracture: A Systematic Review and Meta-Analysis of Patient-Reported Outcome.Life (Basel, Switzerland) · 2025Review
- Type B ankle fractures with additional medium-sized posterior fragment: mid-term functional and radiological outcome after fixation versus no fixation of the posterior fragment.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2025Article
- Comparative study on surgical treatment of weber type B fracture: Posterior versus lateral fixation with locking one-third tubular plate.Bioinformation · 2025Article
- Syndesmotic screws, unscrew them, or leave them? A systematic review and meta-analysis of randomized controlled trials.Journal of orthopaedics · 2024Review
- Clinical, functional and radiological outcome after osteosynthesis of ankle fractures using a specific provocation test.Journal of orthopaedic surgery and research · 2024Article
- Comparing immediate and delayed weight bearing in patients with ankle open reduction internal fixation-A protocol for feasibility randomised controlled trial.Contemporary clinical trials communications · 2024Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
introductionThe Olerud Molander Ankle Score (OMAS) is a widely used validated Patient Reported Outcome Measure (PROM). For clinical research, it is important to determine the Minimal Clinically Important Difference (MCID). The objective of this study was to determine the MCID of the OMAS at several moments in the follow-up, in a cohort of patients that underwent open reduction and internal fixation of unstable ankle fractures with syndesmotic injury. MATERIALS AND
methodsData for this descriptive study were extracted from a prospective randomized controlled trial, the RODEO trial. The Dutch version of the OMAS was completed at 3, 6 and 12-month follow-up and estimated at baseline. The used anchor-based methods were: mean change and ROC curve. The distribution-based methods were: 0.5SD and minimal detectable change (MDC).
resultsThis cohort included 148 patients. The mean OMAS score in the group with minimal improvement between 3 and 6 months was 15.0 (SD 17.5, 95%CI 9.4-20.6) and between 6 and 12 months 9.5 (SD 17.1, 95% CI 3.1-15.9). The ROC curve between 3 and 6 months resulted in a MCID of 12.5 (AUC 0.72) and between 6 and 12 months, the MCID was 7.5 (AUC 0.78). Using 0.5 SD, the MCID was 10.52 (SD 21.04) at 3 months, 11.37 (SD 22.73) at 6 months and 10.47 (SD 20.94) at 12 months. The MDC was 4.72 at 3 months, 5.20 at 6 months and 4.71 at 12 months.
conclusionsThe calculated MCID in patients following surgery for unstable ankle fractures ranges from 10.5 to 15.0 at 3-6-month follow-up and from 7.5 to 11.4 at 6-12-month follow-up, depending on moment and method.
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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.