Surgical intervention refers to a medical procedure that involves the use of instruments to treat a condition or injury. This can include operations to remove, repair, or replace damaged tissues or organs. Common types of surgical interventions include appendectomy for removing the appendix and knee replacement for replacing damaged knee joints. Surgeries can be performed in various settings, such as hospitals or outpatient clinics, and may require anesthesia to ensure patient comfort. The decision to proceed with surgical intervention is typically based on the severity of the condition and the potential benefits versus risks involved in the procedure.