Participant timeline {13}
arthrometer
COMPLICATION
Participants will be recruited from the orthopaedic outpatient clinic at our institution. Participants will be eligible for assessment if they are referred to either of the associated investigators’ clinic (L.B or S.T) and are consented for ACLR. Eligibility for trial participation based on inclusion and exclusion criteria will then be assessed. Patients who are eligible will be offered a discussion about the study and the opportunity to ask questions in line with best-practice informed consent. Data will be collected pre-operatively and post-operatively at four time points (6 weeks, 3 months, 1 year and 2 years) and will include arthrometric measure of anterior tibial translation on the GNRB arthrometer and PROM-based data, as well as return to sport data, complication rates and examination findings (Fig. SPIRIT figure summarising outcomes and assessment scheduleTrial flow pathwayPostoperatively, all GNRB measurements will be taken at the same standard time points to routine surgical follow-up by a member of the research team, or a member of the physiotherapy unit familiar with GNRB protocols. All PROMs and return to sport data will be recorded via online surveys directly into the REDCAP database. Follow-up surveys will be conducted via automated email service at the corresponding time point. All subsequent examinations will be conducted by lead surgeons S.T and L.B with data entered directly into a study data collection report form (paper version), and then manually entered into the REDCAP database. There will be only one time point (2 years) at which patients will be required to attend follow-up (for GNRB testing) without the need for a standard clinical follow-up as per standard practice; otherwise, patients will be within the hospital for their standard clinical follow-up at the time of testing.