The duration of surgical operations involving the application of Liquid Nitrogen (Nitrogen) varies depending on several factors such as the tumor's location, size, and its proximity to critical structures like blood vessels and nerves. Such an operation can generally last between 10 to 15 hours. While the tumor removal phase typically takes 2-3 hours, the liquid nitrogen (nitrogen) application itself lasts approximately one hour. However, as the operation often includes reconstructive steps such as the micro-surgical application and fixation of a bone graft, this surgical procedure is lengthy and requires a high degree of precision.