MAKO Total Knee Artroplasty

Research objectives:

The purpose of this study is to determine the early clinical and radiographic outcomes of robotically assisted total knee arthroplasty with the MAKO surgical robot using the Triathlon knee system. Mean weekly VAS pain score during the first 4 weeks is the primary end point. Results of this study will be compared to prospective cohort of patients in the IRB study 201805014 from this institution who underwent TKA using non-robotic, manual instruments

Primary Hypothesis: Patients receiving robotic TKA will have better early recovery, including lower mean weekly VAS pain score for the first 4 weeks postoperatively and higher functional outcome scores, than the manual TKA historical cohort.

Secondary Hypothesis:

Patients receiving robotic TKA will have more accurate component position and alignment than the manual TKA historical cohort.

Potential Contribution: This study would give us a better understanding of the clinical and radiographic outcomes of patients receiving robotic TKA versus manual TKA. It will identify potential advantages and disadvantages of robotic TKA using the MAKO surgical robot.

Inclusion criteria

• Planning to undergo Unilateral primary total knee arthroplasty
• 18 and up
• Willing to sign informed consent
• Willing to return for all follow-up visits
• Smartphone or tablet device capable of running the Fitbit andFocusMotion platform

Exclusion criteria

• BMI > 45
• Inflammatory arthritis
• Narcotic use greater than 5 days per week
• Walking aid for musculoskeletal or neurologic issue other than operative joint
• Bilateral total knee arthroplasty
• Patient with an active infection or suspected infection in the operative joint
• The absolute and relative contraindications stated in the FDA cleared labeling for the device