Partial knee replacements have a shorter recovery time than total knee replacements, according to MedlinePlus. Most patients can go home on the day after surgery, and many are able to walk unassisted within three to four weeks. Approximately four to six months of physical therapy is required following surgery.
Most forms of exercise are permitted for patients who have undergone partial knee replacements, states MedlinePlus. Exceptions include high-impact exercises such as jogging or running. Biking, walking and swimming are ideal alternatives. Partial knee replacement surgery is recommended for those who cannot sleep well due to knee pain, are hindered in their daily activities and have persistent knee pain that does not respond to other treatments.