Volume VI, Number 1 | March 2022

The Use of Wearable Sensor Technology in Shoulder Arthroplasty to Redefine Patient Outcomes

Iandoli J
CCOM, Woodridge, Illinois, United states

The use of wearable devices to give real-time, objective patient data is an increasing area of interest in the medical field. The Actigraph is a premier patient worn sensor used to track activity in biomechanical testing. Likewise, the Delsys wireless EMG system can be used to provide accurate kinetic and electromyographic data in the extremities of subjects. The purpose of this study was to utilize Actigraph and Delsys technology as an adjunct to patient reported outcomes to provide objective post operative data on activity, and range of motion following shoulder arthroplasty.

Patients undergoing anatomic or reverse total shoulder arthroplasty were prospectively enrolled. At preoperative, 6-, 12-, and 24-week appointments, they were asked to complete SANE scores, UCLA, WOSI, and ASES. At each visit the examiner also took the patient through a number of shoulder range of motion tasks utilizing the Delsys EMG system at each visit. These tasks were shoulder Forward Flexion with Resistance, Passive Forward Flexion, Active and Passive Abduction, Active and Passive Internal Rotation at both 90 degrees and 0 degrees of Abduction, and Active and Passive External Rotation at both 90 degrees and 0 degrees of Abduction. Each patient was also instructed to wear the Actigraph sensor on his/her arm (mid-bicep) or forearm for the next 24 hours, except while sleeping and showering, after each session to measure limb activity.

A total of 66 patients (37 anatomic, 29 reverse) were included, average age was 68.3 years. Significant improvement occurred across all patient reported outcomes at each follow up visit (p<0.05). There were no significant differences noted in Actigraph activity levels at any time point. Preliminary Delsys EMG analysis provided objective data identifying true range of motion, muscle recruitment patterns, acceleration and velocity in the operative extremity, with preliminary correlation to Patient Recorded Outcome Measures.

Delsys technology can provide objective clinical data in addition to patient reported outcomes to aid in the post operative evaluation of patients following anatomic and reverse total shoulder arthroplasty. Early data also suggests it may be used to identify muscle recruitment patterns and other objective biomechanical data that may help direct patient specific rehab, and predict operation success. Longer duration of time periods may need to be utilized to fully capture patient activities at each time point using Actigraph technology.

Image 1 | Image 2

The Journal of the American Osteopathic Academy of Orthopedics

Steven J. Heithoff, DO, FAOAO

To submit an article to JAOAO

Share this content on social media!

Authors in This Edition

J. Michael Anderson BS, OMS IV
Rigel Bacani BA, BS, OMS II
David Beckett OMS I
Bhakti Chavan MBBS, MPH
Jake Checketts DO
Grant Chudik OMS II
Adam Dann
Marc Davidson MD
Clinton J. Devin MD
Jeffrey Dulik DO
Bryan Dunford BS, OMS II
Diego Galindo DO
Gregory Galvin DO
Curtis Goltz DO

Jordan Grilliot DO
Brian Handal
Safet Hatic
Scott Dean Hodges DO
David Houserman DO
Jenna Jarrell MS IV
Michael Jones DO
Anthony Kamson DO
Tyler Metcalf MS IV
Anna Elisa Muzio DO
Cesar Cornejo Ochoa OMS I
Brandi Palmer MS
Joseph Patrick
David Phillips DO

Jonathan Phillips MD
Kornelis Poelstra MD
Jesse Raszewski DO, MS
Katherine Sage DO
Steven Santanello DO, FAOAO
Jared Scott DO
Julieanne Sees
James Seymour DO
Jonathan Schneider DO
John Alex Sielatycki MD
Benjamin Taylor MD, FAAOS
Trevor Torgerson BS, OMS IV
Phong Truong DO
Matt Vassar PhD