Development and Evaluation of a Surgical Simulator and Assessment Rubric for Standing Castration of the Horse

Author:

Braid Helen R.1ORCID

Affiliation:

1. Equine Practice, University of Liverpool, School of Veterinary Science, Institute of Infection, Veterinary and Ecological Sciences, Leahurst Campus, Neston, Wirral, CH64 7TE, United Kingdom

Abstract

In veterinary education, simulators are models or devices that can imitate a real patient or scenario and allow students to practice skills without the need for live patients. Castration is a common surgical procedure in all species, and the standing, open technique is frequently performed in horses. Although a simulator has been developed for equine closed castration, a simulator for standing castration in the horse has not yet been described. This two-part study focused on the design, creation, and evaluation of a simulator for teaching standing castration in the horse. A low-technology simulator was created using molded silicone testicles, cohesive bandage, stockings, and socks. A rubric was created for assessing performance using the simulator. Participants were recruited from three groups: university academic staff members ( n = 12, majority equine veterinarians), equine veterinarians working in private practice ( n = 9), and final-year veterinary students ( n = 28). Each group tested the simulator while being graded using the developed rubric, and participants completed an anonymous online feedback questionnaire. Feedback was positive overall, with 98% of respondents ( n = 48/49) stating that the model would be a useful addition to the veterinary curriculum. Furthermore, 100% of students reported that using the simulator increased their confidence in performing standing castration in horses. Evaluation of the model included assessment of responses from veterinarians and students regarding realism and usefulness of the simulator, comparison of rubric scores between veterinarians and students, and assessment of the reliability of the rubric. Median student rubric score was significantly lower than qualified veterinarians ( p < .001), and Cronbach's alpha demonstrated that there was adequate internal reliability in rubric scoring (α = .85). It was determined that the simulator is effective for teaching the steps of the surgical procedure and for increasing student confidence.

Publisher

University of Toronto Press Inc. (UTPress)

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