A Prospective Multicenter Longitudinal Cohort Study of the Mymobility Platform

Post-market prospective, multi-center longitudinal study to determine if mobile application-guided education and exercise paired with accurate and sensitive activity monitoring, captured from consumer wearables, can provide a viable (and potentially improved) alternative to current standard of care physical therapy for hip and knee arthroplasty.

Study Overview

• Status: Active, not recruiting
• Conditions: Osteoarthritis, Knee; Osteoarthritis, Hip
• Intervention / Treatment: Other: mymobility with Apple Watch

Detailed Description

This is a post-market prospective, multi-center longitudinal study in subjects undergoing primary total knee arthroplasty (TKA), total hip arthroplasty (THA), or partial knee arthroplasty (PKA). The study objective is to determine if mobile application-guided education and exercise paired with accurate and sensitive activity monitoring, captured from consumer wearables, can provide a viable (and potentially improved) alternative to current standard of care patient education and physical therapy for hip and knee arthroplasty. The study will be conducted in phases. The first phase (N = 300) will consist of a pilot cohort of subjects and will primarily serve to determine site study staffing needs and time required for various elements of study execution. The second phase (N = 1,000, RCT) will consist of a randomized controlled subject cohort and will compare outcomes of mobile application-guided exercises and activity with standard of care (SOC) physical therapy. The third phase (N ~ 10,000 including subjects from both Phase I and the study arm from RCT/Phase II) will seek to collect enough data to enable the creation of decision support algorithms for outcomes of joint replacement. All subjects will undergo a TKA, THA, or PKA using SOC procedures and commercially-available devices as part of their clinical care. Subjects will then complete prescribed post-operative activities, such as physical therapy, according to SOC or performing exercises as scheduled through the mymobility app. In office assessments will be conducted at approximately 30 days prior to surgery, 30 days after surgery, and 3 months after surgery. Virtual assessments (including subject questionnaires and recording of adverse events) will occur at approximately 6 months and 1 year post-op.

February 2022 update: Eligibility criteria for new patients includes total knee and partial knee arthroplasty surgeries. Previously enrolled total hip arthroplasty patients will remain in the study for follow-up.

• Study Type: Interventional
• Enrollment (Estimated): 10500
• Phase: Not Applicable

Contacts and Locations

• Study Contact: Name: Scott Abshagen, BS, RN, CCRP; Phone Number: 574-453-7099; Email: scott.abshagen@zimmerbiomet.com

Study Locations

• Australia
  • Australian Capital Territory
    • Canberra, Australian Capital Territory, Australia, 2605
      • National Capital Private Hospital
  • Victoria
    • Richmond, Victoria, Australia, 3121
      • Epworth HealthCare - Richmond
• Italy
  • Roma, Italy
    • Policlinico Universitario Campus Bio-Medico
• Netherlands
  • Geldrop, Netherlands
    • St. Annaziekenhuis
• United States
  • California
    • Fremont, California, United States, 94538
      • Sah Orthopaedic Associates
    • Irvine, California, United States, 92618
      • Hoag Orthopedic Institute
    • Redwood City, California, United States, 94063
      • Stanford University
  • Colorado
    • Denver, Colorado, United States, 80210
      • Colorado Joint Replacement
    • Denver, Colorado, United States, 80401
      • Panorama Orthopedics & Spine Center
  • Florida
    • Temple Terrace, Florida, United States, 33637
      • Foundation for Orthopedic Research and Education
    • Weston, Florida, United States, 33331
      • Cleveland Clinic Florida
  • Georgia
    • Atlanta, Georgia, United States, 30329
      • Emory University
  • Illinois
    • Chicago, Illinois, United States, 60612
      • Rush University Medical Center
  • Indiana
    • Indianapolis, Indiana, United States, 46241
      • Midwest Center for Joint Replacement
  • Kentucky
    • Lexington, Kentucky, United States, 40509
      • Bluegrass Orthopaedics
  • Maryland
    • Bethesda, Maryland, United States, 20817
      • OrthoBethesda
  • Massachusetts
    • Newton, Massachusetts, United States, 02462
      • Newton-Wellesley Hospital
  • Michigan
    • Rochester Hills, Michigan, United States, 48307
      • Ascension Medical Group - University Orthopaedic Specialists
    • Southfield, Michigan, United States, 48075
      • Michigan Orthopaedic Surgeons
  • Missouri
    • Saint Louis, Missouri, United States, 63110
      • Washington University
  • New Jersey
    • Montvale, New Jersey, United States, 07645
      • Rothman Institute
  • New Mexico
    • Albuquerque, New Mexico, United States, 87110
      • New Mexico Orthopaedic Associates
  • North Carolina
    • Morrisville, North Carolina, United States, 27560
      • Duke University
  • Ohio
    • Cleveland, Ohio, United States, 44195
      • Cleveland Clinic Main Campus
    • New Albany, Ohio, United States, 43054
      • JIS Orthopedics
  • Oregon
    • Portland, Oregon, United States, 97225
      • Orthopedic + Fracture Specialists
    • Tualatin, Oregon, United States, 97062
      • ROC Orthopedics
  • Pennsylvania
    • Bryn Mawr, Pennsylvania, United States, 19010
      • Rothman Institute
    • Philadelphia, Pennsylvania, United States, 19104
      • University of Pennsylvania
  • Utah
    • Salt Lake City, Utah, United States, 84108
      • University of Utah

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria

1. Subject must be 18 years of age or older.
2. Subject qualifies for a primary, unilateral total or partial knee arthroplasty, based on physical exam and medical history.
3. Investigator plans to treat subject with a commercially-available device, used on-label according to the manufacturer's instructions for use, as part of their clinical care.
4. Subject owns and maintains an iPhone capable of pairing to the Apple Watch, supporting iOS updates and is compatible with the mymobility App.
5. Subject is willing and able to complete the protocol required follow-up.
6. Subject is able to read and understand the language used in the mymobility App for their region.
7. Subject is willing and able to provide written Informed Consent and Authorization by signing and dating the IRB/EC approved Informed Consent Form and Authorization. Where applicable, subject must also be willing to provide authorization for use of protected health information in accordance with local privacy laws.
8. Subject is mobile with no more than a single cane/single crutch assist preoperatively.

Exclusion Criteria

1. Subject is a current alcohol or drug abuser as defined by the investigator.
2. Subject is considered a member of a protected population (e.g., prisoner, mentally incompetent, etc.).
3. Subject has systemic inflammatory arthropathies which would interfere or compromise the activity profiles within this study.
4. Subject is currently participating in any other surgical intervention, physical therapy or pain management study which would compromise the results of this study.
5. Subject requires simultaneous or staged bilateral replacements, staged<90 days apart. Subjects can be enrolled into the study for the second, staged arthroplasty if scheduled >89 days after their first, contralateral replacement.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Supportive Care
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: mymobility with Apple Watch; Post-operative mobile application-guided education and exercise paired with accurate and sensitive activity monitoring.	Other: mymobility with Apple Watch; The mymobility mobile application is a mobile software platform designed to facilitate remote episode of care management and asynchronous communication between the provider care team and their patient via provider-approved care plans and engagement communications. Current care pathways have been developed for: Total Hip Replacement, Total Knee Replacement and Partial Knee Replacement. Designed for the orthopedic population, mymobility also integrates wearable data from the Apple Watch into provider dashboards, providing enhanced understanding and monitoring of patients throughout the episode of care.
No Intervention: Standard of Care Physical Therapy; Standard of care patient education and post-operative physical therapy, as determined by local site guidelines and care pathways.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Phase II (RCT): Readmission Rate	RCT Phase: Non-inferiority of the mymobility with Apple Watch group in the number of readmissions through 30 days post-op compared to subjects receiving standard physical therapy.	30 Days postop

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Phase II RCT: Knee Injury and Osteoarthritis Outcome Score - Joint Replacement (KOOS, JR)	The KOOS, JR score ranges from 0 to 100 where 0 represents total knee disability and 100 represents perfect knee health.	90 Days
Phase II RCT: Hip disability and Osteoarthritis Outcome Score - Joint Replacement (HOOS, JR)	The HOOS, JR score ranges from 0 to 100 where 0 represents total hip disability and 100 represents perfect hip health.	90 Days
Phase II RCT: EQ-5D-5L	Non-inferiority in post-operative EQ-5D-5L outcomes for the mymobility with Apple Watch group compared to subjects receiving standard physical therapy.	90 Days
Phase II RCT: Incidence of Manipulation under Anesthesia (MUA)	Comparison of incidence of Manipulation under anesthesia (MUA) between the study groups.	90 Days
Phase II RCT: Timed Up and Go (TUG)	Timed Up and Go Test: The time to rise from a chair, walk 10 feet, turn around, walk back to the chair and sit down.	90 Days
Phase II RCT: Single-Leg Stance (SLS) Test	Balance Test while standing on a single leg. Three tests are performed and the best of the three times is recorded. The maximum time for this test is 60 seconds.	90 Days
Phase II RCT: Subject Satisfaction	Comparison of subject satisfaction survey results between the study groups.	90 Days
Phase II RCT: Healthcare Costs	The number of hospital readmissions, reoperations, urgent care visits, and emergency room visits will be captured and used to calculate the cost of care after the joint replacement procedure.	90 Days

Collaborators and Investigators

• Sponsor: Zimmer Biomet
• Investigators: Study Director: Erin Osborn, Zimmer Biomet

Study record dates

Study Major Dates

• Study Start (Actual): October 22, 2018
• Primary Completion (Estimated): December 31, 2024
• Study Completion (Estimated): July 31, 2025

Study Registration Dates

• First Submitted: October 26, 2018
• First Submitted That Met QC Criteria: November 8, 2018
• First Posted (Actual): November 9, 2018

Study Record Updates

• Last Update Posted (Actual): December 22, 2023
• Last Update Submitted That Met QC Criteria: December 21, 2023
• Last Verified: December 1, 2023

More Information

Terms related to this study

• Keywords: Physical Therapy; Knee Arthroplasty; Hip Arthroplasty; Hip Replacement; Knee Replacement; Joint Replacement; Partial Knee Replacement; Hip Pain, Chronic; Knee Pain, Chronic
• Additional Relevant MeSH Terms: Joint Diseases; Musculoskeletal Diseases; Rheumatic Diseases; Arthritis; Osteoarthritis; Osteoarthritis, Knee; Osteoarthritis, Hip
• Other Study ID Numbers: CLU2018-13CH

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No