A Comparison Of Primary TKA Rehabilitation Using A Smart Orthotic Versus Outpatient Physical Therapy

Study Overview
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Brief Summary
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This will be a prospective, randomized, noninferiority clinical trial comparing rehabilitation methods post-total knee arthroplasty (TKA). Population of interest is adult hip/knee clinic patients over age 18 who are indicated for unilateral primary total knee arthroplasty. All TKA patients are prescribed physical therapy (PT) for rehabilitation post-operatively. The investigators will compare this current treatment with a new, validated, wearable smart knee brace (FM2 Knee Brace) that can be used for rehabilitation post-TKA. Following enrollment in the study, the investigators will match and randomize participants into two cohorts (outpatient PT versus FM2 Knee Brace). Outpatient PT group will be prescribed routine six-week course of outpatient PT (no pool exercises, remainder at therapist's discretion) to start as soon as possible upon discharge. The FM2 Knee Brace group will complete device set up at pre-op visit and will be prescribed 3-4 exercises to complete at their discretion over six weeks. The investigators will collect measurements of knee flexion, extension, total arc of motion at pre-op visit and at 6-week, 3-month, and 1-year post-op visits. The investigators will also plan to record additional PROs, therapy compliance, and complication rates. The investigators will compare the two groups to test whether the new FM2 Knee Brace is noninferior to regular PT when recovering from TKA, and if the new technology could be an alternative to outpatient PT.

Official Title
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A Prospective Comparison Of Primary Total Knee Arthroplasty Rehabilitation Using A Smart Orthotic Versus Outpatient Physical Therapy

Conditions
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Arthropathy of Knee

Intervention / Treatment
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* Device: FM2 Knee Brace


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Ages 18-100 Indicated for primary total knee arthroplasty Possess a smartphone with capabilities to use the FocusMotion app and FM2 Knee Brace Home discharge post-operatively Exclusion Criteria: Prior ipsilateral knee surgery Prior manipulation under anesthesia of either knee BMI > 40

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 100 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Other
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| No Intervention: Outpatient Physical Therapy<br> | |
| Experimental: Smart Orthotic Device (FM2 Knee Brace)<br> | Device: FM2 Knee Brace<br>* Participants in this group will use the FM2 Knee Brace for their post-TKA physical therapy.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Range of Motion | The study will collect measurements of knee flexion, extension, total arc of motion, and will also plan to record therapy compliance and complication rates. The two groups will be compared to study if the FM2 Knee Brace group is clinically non-inferior to the standard PT group with respect to knee range of motion. | pre-surgery | 
| Range of Motion | The study will collect measurements of knee flexion, extension, total arc of motion, and will also plan to record therapy compliance and complication rates. The two groups will be compared to study if the FM2 Knee Brace group is clinically non-inferior to the standard PT group with respect to knee range of motion. | 6 weeks post-surgery | 
| Range of Motion | The study will collect measurements of knee flexion, extension, total arc of motion, and will also plan to record therapy compliance and complication rates. The two groups will be compared to study if the FM2 Knee Brace group is clinically non-inferior to the standard PT group with respect to knee range of motion. | 3 months post-surgery | 
| Range of Motion | The study will collect measurements of knee flexion, extension, total arc of motion, and will also plan to record therapy compliance and complication rates. The two groups will be compared to study if the FM2 Knee Brace group is clinically non-inferior to the standard PT group with respect to knee range of motion. | 1 year post-surgery |