Arthroscopy is a common surgical technique that is used to treat conditions that cause pain in the knee. In this procedure, a small surgical tool equipped with a camera is inserted through small incisions, allowing the surgeon to see inside the knee and carry out the procedure. Arthroscopy may be an option for treating arthritis in the knee, osteoarthritis. A surgeon is able to repair damaged parts or cartilage with more precision than is found in traditional surgical methods.