Partial knee replacement, also known as Unicompartmental Knee Replacement (UKA), is a relatively new procedure for individuals who have arthritis in only one compartment of their knee. Technology has made it possible to replace only the affected section of the knee rather than the entire knee. This surgery involves removing less soft tissue and bone, maintaining the knee ligaments and allowing for a quicker recovery and return to normal activities, giving the patient a more “natural” sensation to their operated knee.