Because the arthroscope and surgical instruments are thin, your surgeon can use very small incisions, rather than the larger incision needed for open surgery. This results in less pain for patients, less joint stiffness, and often shortens the time it takes to recover and return to favorite activities. During arthroscopy, your surgeon can see the structures of your knee in great detail on a video monitor.
For a function of three variables, a level set is a surface in three-dimensional space that we will call a level surface. For a constant value $c$ in the range of $f(x,y,z)$, the level surface of $f$ is the implicit surface given by the graph of $c=f(x,y,z)$.
1 the act of a person or thing that sets. 2  the point or position of something, such as a thermostat, that has been set:The air conditioner setting is too high. 3  the surroundings or environment of anything:one's home setting. 4  a group of all the pieces, as of china, used for setting a table.