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NCT Number: NCT04924205

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

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.

Recruiting

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Key information

Conditions

Age range

18 year–100 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of Iowa Hospitals & Clinics

Iowa City, Iowa, 52242, United States

Location status: Recruiting

Location contact

Kyle Geiger, MD

SUB_INVESTIGATOR

Lauren Crowe, BS

CONTACT

[email protected]

319-467-7128

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

FM2 Knee Brace

Device

Participants in this group will use the FM2 Knee Brace for their post-TKA physical therapy.

Primary outcomes

  1. Range of Motion

    Time frame: pre-surgery

    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.

  2. Range of Motion

    Time frame: 6 weeks post-surgery

    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. Range of Motion

    Time frame: 3 months post-surgery

    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.

  4. Range of Motion

    Time frame: 1 year post-surgery

    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.

Study contacts

Contact information is provided by the study sponsor or research team.

Kyle Geiger, MD

CONTACT

[email protected]

Lauren Crowe, BS

CONTACT

[email protected]

319-467-7128

Sponsors and collaborators

Lead sponsor

Nicolas Noiseux, MD, MS, FRCSC

Other

Registry information

Official study title

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

Important dates

Study start
2021
Primary completion
2028
Study completion
2028
First posted
Jun 11, 2021
Registry last updated
Mar 25, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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