New Hybrid Remote Patient Monitoring System Feasible and Motivating Following Total Knee Arthroplasty

App, with smart knee sleeve, stores and shares key data points about a patient’s rehabilitation

A feasibility trial conducted at Cleveland Clinic validates a new remote patient monitoring (RPM) system for patients under 80 who were discharged home following total knee arthroplasty (TKA), according to a study published recently in the Journal of Arthroplasty.

New insights into rehabilitation

Approximately 90% of recovery from TKA occurs outside the clinic, when a patient’s activity level and exercise regimen play a significant role in the rehabilitation process. The proprietary RPM system from FocusMotion gives patients real-time motion feedback through an avatar, charting progress made each day, and sends users notifications reminding them to exercise or take the weekly self-assessment. This innovation may provide several benefits to patients, providers and payers, including increased patient engagement with rehabilitation, better insight into negative outcomes, and a cost-effective and user-friendly means to collect, store and share the information.

“Traditionally speaking, we receive very little objective data to indicate how our patients are recovering after discharge,” states Brendan Patterson, MD, Chairman of Cleveland Clinic’s Department of Orthopaedic Surgery. “Insights into the patient experience of rehabilitation from TKA might help shape future therapies and interventions, and could give us a better handle on the ultimate value of TKA.”

Combined with the app, smart knee sleeve collects several important data points

In the trial, patients (N = 25) downloaded an RPM application to their personal iOS devices, wore a smart neoprene knee sleeve during unsupervised exercise once daily, and completed a semistructured interview at three months postop. The study, funded by the Orthopedic Research and Education Foundation, sought to obtain information as to the number of interruptions in data transmission and patient acceptance of the RPM system.

Participants downloaded the app preoperatively, and baseline data was obtained. The knee sleeve was paired with the patient’s iOS device postoperatively—before discharge—and participants were instructed to perform daily rehabilitation exercises and to complete a weekly survey. Two sensors on the knee sleeve transmitted spatial orientation changes, reporting daily compliance with a home exercise program and range of motion (i.e., knee flexion). When combined with the app, the RPM system collected the following additional data points: mobility, defined by number of steps; weekly patient-reported outcomes (PROMs); and opioid consumption, defined as the number of pills consumed in the last week. The patient-facing application gave participants full access to their data, as well as an avatar illustrating the patient’s range of motion while performing the exercise sets.

By Cleveland Clinic

Image Credit: Journal of Arthroplasty


About Peter Coffaro 458 Articles
A growth-driven and strategic executive, Peter Coffaro commands more than 25 years of progressive management success within the medical device industry. Recognized by the World Journal of Orthopedics, Exponential Healthtech, and as one of the top medical sales influencers in the industry; he has 10 years of combined sales management experience and has held positions as a Director, General Manager, Distributor, and Vice President. Peter has worked for some of the top orthopedic companies in the world - Zimmer, DePuy, and Stryker. He is also the founder of OrthoFeed: a popular blog that covers digital orthopedic news and emerging medical technologies. Peter is a three-time Hall of Fame award winner at Johnson and Johnson and has an extensive background in organizational development, business development, sales management, digital marketing, and professional education. Peter holds a B.S. degree in Biology and Chemistry from Northern Illinois University.

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