请用NEJM杂志的写作风格润色以下一段话：We used a cognitive task analysis simulation Touch Surgery to analyse the simulation of large external fixator learning in 23 postgraduate students at different years of residency

In this study, we employed a cognitive task analysis simulation, specifically Touch Surgery, to investigate the efficacy of simulation-based training on the acquisition of skills related to large external fixator learning in a cohort of 23 postgraduate medical students at various stages of residency training. Our findings demonstrate that simulation training positively impacted the performance of residents. Simulation-based teaching serves as a valuable supplement to the traditional surgical education of medical students, given the limited opportunities for hands-on learning in the operating theatre. By simulating a range of real-life surgical scenarios, simulation-based training affords trainees the opportunity to practice and rehearse cases multiple times. Our study highlights the need for more research in this area of teaching in China.