Return to Physical Activities After Total Knee Arthroplasty

There are three purposes of this study. The first purpose is to examine the factors that
allow patients that underwent total knee arthroplasty with the Journey II to return to
recreational sports and/or work activities, and to achieve recommended physical activity
levels (defined by the American Heart Association and the American College of Sports
Medicine).

The second purpose is to examine the factors that limit the ability of patients to resume
sports, work, and physical fitness training, including comorbidities, general health,
complications, and other factors.

The third purpose is to use advanced sports medicine rehabilitation principles that involve
staged progressive protocols to safely prepare patients for sports, work, and physical
fitness training. Objective measurements of muscle strength, endurance, balance, and
neuromuscular control will be used to determine when patients may be cleared to participate
in these activities.

Inclusion Criteria:

- Men or women 65 years of age or younger.

- Patient indicates before surgery the desire to return to recreational (sports) and/or
work activities postoperatively

- Patient provides informed consent.

- Patient complies with postoperative rehabilitation program.

Exclusion Criteria:

- Patient did not desire to return to recreational and/or work activities after TKA

- History of alcohol or drug abuse within 3 years of the operation.

- Disabling or widespread osteoarthritis or other joint disease in any other joint.

- Presence of a significant connective tissue disease, autoimmune disease, HIV-positive,
or immune deficiency syndrome.

- Any other contraindications that in the opinion of the principal investigator would
interfere with the conduct of the study.