“…Specifically, as to the former, the assistant must understand the purpose, method and technical requirements specific to the operation at hand. This demands knowledge and experience of the relevant anatomy and pathology, allowing the assistant to anticipate, and therefore protect, vital anatomical structures, as well as conceptualize potential scenarios that may be encountered at various stages of the procedure. This, in turn, allows the assistant to take steps with the theatre team preoperatively to ensure that the necessary equipment are available, and that the patient is positioned and prepped appropriately …”