How can new tech help surgeons practice complex operations before touching a patient?

Imagine a surgeon could rehearse a delicate liver or pancreas operation on a perfect replica of your body before you ever go under the knife. A new review examines three high-tech training tools that aim to make this possible. It finds that 3D-printed models offer an incredibly realistic feel of a patient's unique anatomy, but they can't simulate how living tissue behaves. Virtual reality lets surgeons practice a procedure over and over in a risk-free digital space, but the sense of touch isn't quite real yet. Augmented reality projects holographic guides into the real surgical field, helping bridge planning and action, though it can be mentally overwhelming for the surgeon. It's crucial to understand this is a narrative review—it describes the characteristics of these emerging tools but doesn't provide any data on whether they actually lead to better surgeons or safer operations. The authors point out that future work needs to prove these simulations translate to real-world skill.