{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,28]],"date-time":"2026-02-28T03:32:04Z","timestamp":1772249524620,"version":"3.50.1"},"reference-count":56,"publisher":"MDPI AG","issue":"21","license":[{"start":{"date-parts":[[2020,10,27]],"date-time":"2020-10-27T00:00:00Z","timestamp":1603756800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100007921","name":"University of Pittsburgh","doi-asserted-by":"publisher","award":["Coulter Translational Research Partners II Program"],"award-info":[{"award-number":["Coulter Translational Research Partners II Program"]}],"id":[{"id":"10.13039\/100007921","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100010554","name":"Clinical and Translational Science Institute, University of Pittsburgh","doi-asserted-by":"publisher","award":["#UL1TR000005"],"award-info":[{"award-number":["#UL1TR000005"]}],"id":[{"id":"10.13039\/100010554","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100011360","name":"Office of Research, Health Sciences, University of Pittsburgh","doi-asserted-by":"publisher","award":["K12 HS 022989\u201001"],"award-info":[{"award-number":["K12 HS 022989\u201001"]}],"id":[{"id":"10.13039\/100011360","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Rehabilitation has been shown to improve functional outcomes following total knee replacement (TKR). However, its delivery and associated costs are highly variable. The authors have developed and previously validated the accuracy of a remote (wearable) rehabilitation monitoring platform (interACTION). The present study\u2019s objective was to assess the feasibility of utilizing interACTION for the remote management of rehabilitation after TKR and to determine a preliminary estimate of the effects of the interACTION system on the value of rehabilitation. Specifically, we tested post-operative outpatient rehabilitation supplemented with interACTION (n = 13) by comparing it to a standard post-operative outpatient rehabilitation program (n = 12) using a randomized design. Attrition rates were relatively low and not significantly different between groups, indicating that participants found both interventions acceptable. A small (not statistically significant) decrease in the number of physical therapy visits was observed in the interACTION Group, therefore no significant difference in total cost could be observed. All patients and physical therapists in the interACTION Group indicated that they would use the system again in the future. Therefore, the next steps are to address the concerns identified in this pilot study and to expand the platform to include behavioral change strategies prior to conducting a full-scale randomized controlled trial. Trial registration: ClinicalTrials.gov NCT02646761 \u201cinterACTION: A Portable Joint Function Monitoring and Training System for Remote Rehabilitation Following TKA\u201d 6 January 2016.<\/jats:p>","DOI":"10.3390\/s20216118","type":"journal-article","created":{"date-parts":[[2020,10,29]],"date-time":"2020-10-29T21:21:00Z","timestamp":1604006460000},"page":"6118","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":36,"title":["A Portable System for Remote Rehabilitation Following a Total Knee Replacement: A Pilot Randomized Controlled Clinical Study"],"prefix":"10.3390","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2099-413X","authenticated-orcid":false,"given":"Kevin M.","family":"Bell","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA"},{"name":"Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, PA 15213, USA"},{"name":"Clinical and Translational Science Institute, University of Pittsburgh, Pittsburgh, PA 15213, USA"}]},{"given":"Chukwudi","family":"Onyeukwu","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA"}]},{"given":"Clair N.","family":"Smith","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA"}]},{"given":"Adrianna","family":"Oh","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA"}]},{"given":"Annette","family":"Devito Dabbs","sequence":"additional","affiliation":[{"name":"Department of Acute and Tertiary Care, School of Nursing, University of Pittsburgh, Pittsburgh, PA 15213, USA"}]},{"given":"Sara R.","family":"Piva","sequence":"additional","affiliation":[{"name":"Department of Physical Therapy, School of Health and Rehabilitation Sciences, University of Pittsburgh, Pittsburgh, PA 15213, USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4932-6541","authenticated-orcid":false,"given":"Adam J.","family":"Popchak","sequence":"additional","affiliation":[{"name":"Department of Physical Therapy, School of Health and Rehabilitation Sciences, University of Pittsburgh, Pittsburgh, PA 15213, USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9272-7201","authenticated-orcid":false,"given":"Andrew D.","family":"Lynch","sequence":"additional","affiliation":[{"name":"Department of Physical Therapy, School of Health and Rehabilitation Sciences, University of Pittsburgh, Pittsburgh, PA 15213, USA"}]},{"given":"James J.","family":"Irrgang","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA"},{"name":"Department of Physical Therapy, School of Health and Rehabilitation Sciences, University of Pittsburgh, Pittsburgh, PA 15213, USA"}]},{"given":"Michael P.","family":"McClincy","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA"}]}],"member":"1968","published-online":{"date-parts":[[2020,10,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1157","DOI":"10.1002\/art.37903","article-title":"Total joint replacement outcomes in patients with concomitant comorbidities: A glass half empty or half full?","volume":"65","author":"Losina","year":"2013","journal-title":"Arthritis Rheum."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"248","DOI":"10.1002\/art.21842","article-title":"Population impact of arthritis on disability in older adults","volume":"55","author":"Song","year":"2006","journal-title":"Arthritis Rheum."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"248","DOI":"10.1093\/gerona\/60.2.248","article-title":"Diseases and impairments as risk factors for onset of disability in the older population in England and Wales: Findings from the Medical Research Council Cognitive Function and Ageing Study","volume":"60","author":"Spiers","year":"2005","journal-title":"J. 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