Musculoskeletal (MSK) conditions account for up to one-third of general practice consultations and over one-fifth of emergency department attendances in the UK. Postpandemic, the elective orthopaedic surgery backlog remains one of the most substantial across surgical specialties. Despite this burden, undergraduate exposure to trauma and orthopaedics (T&O) remains limited and inconsistent. Most UK medical students receive only 2–3 weeks of T&O teaching, with up to 40% of foundation doctors feeling underprepared to manage MSK conditions. The Evaluation of Trauma and Orthopaedic Teaching in Medical Schools Nationally (TENDON Study) aims to evaluate the current state of undergraduate T&O education in UK medical schools from both student and educator perspectives.

This national, prospective, cross-sectional survey will be conducted between 25 July and 27 October 2025. A dual-instrument electronic survey was developed through Qualtrics, informed by the British Orthopaedic Association (BOA) Undergraduate Curriculum and UK Medical Licensing Assessment content map. Participants will include medical students (Years 1–6), foundation doctors and orthopaedic educators recruited through British Orthopaedic Medical Students Association and BOA networks, and designated school representatives. Survey domains include curriculum coverage, teaching methods, clinical exposure and self-reported competence. Quantitative data will be analysed using descriptive and inferential statistics; qualitative data will undergo thematic analysis. Reporting will follow the Checklist for Reporting Of Survey Studies framework, with relevant elements drawn from the Checklist for Reporting Results of Internet E-Surveys checklist.

Ethical approval was obtained from the Human Biology Research Ethics Committee, University of Cambridge. Findings will be disseminated via peer-reviewed publication, conference presentations and summary reports to curriculum leads and relevant educational bodies.

The ‘time-limited trial’ for patients with critical illness is a collaborative plan made by clinicians, patients and families to use life-sustaining therapies for a defined duration. After this period, the patient’s response to therapy informs decisions about continuing recovery-focused care or transitioning to comfort-focused care. The promise of time-limited trials to help navigate the uncertain limits and benefits of life-sustaining therapies has been extensively discussed in the palliative and critical care literature, leading to their dissemination into clinical practice. However, we have little evidence to guide clinicians in how to conduct time-limited trials, leading to substantial variation in how and why they are currently used. The overall purpose of this study is to characterise the features of an optimal time-limited trial through a rich understanding of how they are currently shaping critical care delivery.

We are conducting an observational, multicentre, focused ethnography of time-limited trials in patients with acute respiratory failure receiving invasive mechanical ventilation in six intensive care units (ICUs) within five hospitals across the US. Study participants include patients, their surrogate decision makers and ICU clinicians. We are pursuing two complementary analyses of this rich data set using the open-ended, inductive approach of constructivist grounded theory and, in parallel, the structured, deductive methods of systems engineering. This cross-disciplinary, tailored approach intentionally preserves the tension between time-limited trials’ conceptual formulation and their heterogeneous, real-world use.

This study has been reviewed and approved by the University of Wisconsin Institutional Review Board (IRB) as the single IRB (ID: 2022-1681; initial approval date 23 January 2023). Our findings will be disseminated through peer-reviewed publication, conference presentations, and summaries for the public.

NCT06042621.