Patients with knee pain or limited knee function may be candidates for arthroscopic knee surgery. Most people who suffer from a knee injury or degeneration and who have not found the relief they need through nonoperative treatments can benefit from a minimally invasive procedure. The information here will help you to better understand the anatomy and function of the knee, as well as the effects on the knee of a meniscus tear and ACL damage. In addition, it will guide you through the steps of arthroscopic knee surgery, which is used to treat these conditions.