Final answer:
In 'Because of Mr. Terupt', Mr. Terupt needed surgery due to a head injury caused by an ice ball. The specific type of neurosurgery is not detailed, but it addresses his severe head trauma.
Step-by-step explanation:
In the book Because of Mr. Terupt, Mr. Terupt was going to have surgery due to a severe head injury. The injury was the result of an accident that occurred during a winter event at school when an ice ball hit him, leading to a coma. The specific type of surgery is not mentioned in detail within the book; however, it can be inferred that it was a neurosurgical procedure since it involved the treatment of his head injury. The surgery is a critical point in the novel, affecting the lives of his students and highlighting themes of empathy, growth, and community.