In arthroscopic surgery a tiny puncture is made in the skin over the joint through which 4 mm size special telescope, called arthroscope is introduced inside the joint. This arthroscope has small but powerful lens attached at its front and a special endoscopic video camera and cold light source at its hind end. The endoscopic camera is in turn attached to the monitor screen. Thus various parts inside the joint appear magnified are very clearly seen on the monitor screen. In this manner the accurate diagnosis is made without cutting open the joint. Once the problem is diagnosed, another puncture is made to introduce one of the several ultra-modern small instruments in to the joint to treat the pathology. Thus surgery is performed by manipulating the instruments introduced through tiny hole in the joint while seeing the clear and magnified picture over the monitor screen.