Knee Replacement Surgeon in Dombivli Arthroscopy of the Knee Replacement is usually performed to diagnose and treat internal knee problems such as cartilage tears (meniscal tears), loose bodies, arthritis and ligament damage surgery. On occasions, arthroscopy may be used for other conditions, which will be explained to you by the doctor. Simple arthroscopy procedures are carried out in hospital as a Day Care surgery or 1 night stay. You may also require at least 1 night stay for medical reasons.