A tricompartmental, cemented TKA with a medial parapatellar surgical approach was utilized.
Patients were included in the study on a consecutive basis and are part of an ongoing clinical trial of rehabilitation after TKA. 
Potential subjects were excluded from the study if they had musculoskeletal involvement other than unilateral TKA limiting their function or if they were diagnosed with uncontrolled blood pressure, diabetes mellitus, neoplasms, neurological disorders, or a body mass index (mass in kg/height in m 2 ) of greater than 40 (morbidly obese).