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Updated: Jul 19, 2025

A Mini-Invasive Internal Fixation Technique for Studying Immobilization-Induced Knee Flexion Contracture in Rats
Published on: May 20, 2019
Ankle fracture internal fixation performed by cadaveric simulation-trained versus standard-trained orthopaedic
Hannah K James1,2, Damian R Griffin1,2, James Griffin2
1Department of Trauma & Orthopaedic Surgery, University Hospitals of Coventry and Warwickshire NHS Trust, Coventry, UK.
Aims:
Ankle fracture fixation is commonly performed by junior trainees. Simulation training using cadavers may shorten the learning curve and result in a technically superior surgical performance.
Methods:
We undertook a preliminary, pragmatic, single-blinded, multicentre, randomized controlled trial of cadaveric simulation versus standard training. Primary outcome was fracture reduction on postoperative radiographs.
Results:
Overall, 139 ankle fractures were fixed by 28 postgraduate year three to five trainee surgeons (mean age 29.4 years; 71% males) during ten months' follow-up. Under the intention-to-treat principle, a technically superior fixation was performed by the cadaveric-trained group compared to the standard-trained group, as measured on the first postoperative radiograph against predefined acceptability thresholds. The cadaveric-trained group used a lower intraoperative dose of radiation than the standard-trained group (mean difference 0.011 Gym2, 95% confidence interval 0.003 to 0.019; p = 0.009). There was no difference in procedure time.
Conclusion:
Trainees randomized to cadaveric training performed better ankle fracture fixations and irradiated patients less during surgery compared to standard-trained trainees. This effect, which was previously unknown, is likely to be a consequence of the intervention. Further study is required.
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