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Title: A randomised controlled trial comparing meat-based with human cadaveric models for teaching ultrasound-guided regional anaesthesia
Authors: Chuan Alwin
Lim Yean Chin
Aneja Harmeet
Duce Nicholas
Appleyard Richard
Forrest Kirsty
Royse Colin F
Keywords: regional Anaesthesia
Medical Education
ultrasound-guided regional Anaesthesia
Issue Date: 2016
Abstract: The aim of this prospective, blinded, randomised controlled study was to compare novices’ acquisition of the technical skills of ultrasound-guided regional anaesthesia using either a meat phantom model or fresh-frozen human cadavers. The primary outcome was the time taken to successfully perform an ultrasound-guided sciatic nerve block on a cadaver; secondary outcomes were the cumulative score of errors, and best image quality of the sciatic nerve achieved. After training, the median (IQR [range]) time taken to perform the block was 311(164–390 [68–600]) s in the meat model trained group and 210 (174–354 [85–600]) s in the fresh-frozen cadaver trained group (p = 0.24). Participants made a median (IQR [range]) of 18 (14–33 [8–55]) and 15 (12–22 [8–44]) errors in the two groups respectively (p = 0.39). The image quality score was also not different, with a median (IQR [range]) of 62.5 (59.4– 65.6 [25.0–100.0])% vs 62.5 (62.5–75.0 [25.0–87.5])% respectively (p = 0.58). The training and deliberate feedback improved all participants’ block performance, the median (IQR [range]) times being 310 (206–532 [110–600]) s before and 240 (174–354 [85–600]) s after training (p = 0.02). We conclude that novices taught ultrasound scanning and needle guidance skills using an inexpensive and easily constructed meat model perform similarly to those trained on a cadaveric model.
DOI: 10.1111/anae.13446
ORCID: 0000-0003-4356-6525
PubMed URL:
Journal Title: Anaesthesia
Type: Journal Article
Affiliates: University of New South Wales, Sydney
Study/Trial: Randomized Controlled Clinical Trial/Controlled Clinical Trial
Appears in Collections:Scholarly and Clinical

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