The word "orthoscopic" is often confused with "arthroscopic" which refers to the viewing of joints. Knee surgery performed with a small scope is arthroscopic knee surgery, not orthoscopic knee surgery. Orthoscopic means having correct vision or producing it.
Arthroscopy (also called arthroscopic surgery) is a minimally invasive surgical procedure in which an examination and sometimes treatment of damage of the interior of a joint is performed using an arthroscope, a type of endoscope that is inserted into the joint through a small incision. Arthroscopic procedures can be performed either to evaluate or to treat many orthopaedic conditions including torn or damaged cartilage.
http://orthoinfo.aaos.org/topic.cfm?topic=A00109


