Total Knee Arthroplasty: Functional and Clinical Outcomes
Total Knee Arthroplasty: Functional and Clinical Outcomes
The purpose of this study is to assess the differences in functional and patient reported
 outcomes between total knee replacement (TKA) implants. In addition, this work will examine
 the correlation between functional assessments and patient reported outcomes following
 surgery. All subjects will complete assessments preoperatively, 4-6 weeks following TKA and
 then one year following TKA. Subjects will complete a series of patient reported outcomes as
 well as a series of functional outcomes at each of the time points of interest. The analysis
 will include a repeated measures design to determine differences between groups across time
 as well as correlations between the functional and patient reported outcomes. This work will
 hopefully determine the importance of using objective functional outcomes following TKA as
 well as determining the need for patient assessments out to one year following surgery.
The number differences in subjects analyzed from baseline to 6 weeks to 52 weeks are due to
 the fact that we did not use the 6 week time point in the final analysis based on the
 clinical decision that 6 weeks was too early in recovery to provide accurate information for
 clinical decision making. Therefore the patients used in the final analysis were those
 subjects who were able to and completed the assessment at pre-op and 1 year post-op which is
 how we get to the 20 subjects per group.
Inclusion Criteria:

 1. Patients requiring primary total knee replacement

 2. Patients willing and able to comply with the follow-up visits and evaluations

 3. Patients willing to sign informed consent approved by the Institutional Review Board

 Exclusion Criteria:

 1. Patients with inflammatory arthritis

 2. Patients with diabetic neuropathy

 3. Patients unable to ambulate without the use of an assistive device prior to surgery

 4. Patients unable to stand in single limb stance on each foot prior to surgery.