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The primary outcome was patient\u2010reported functional ability measured by the Lower Extremity Functional Scale at 12 months postoperative. Secondary outcomes included knee symptoms, depression, anxiety, and satisfaction. Questionnaires were completed preoperatively and at 3, 6, and 12 months postoperatively.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The mean difference in function between groups was 4.47 (95% confidence interval [95% <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content>] 0.20, 8.75; <jats:italic>P<\/jats:italic> = 0.04) at 12 months postoperative, favoring the intervention. The mean difference in function between groups decreased over time, from 8.1 points at 3 months (95% <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content> 3.8, 12.4; <jats:italic>P<\/jats:italic> &lt; 0.001) to 5.4 (95% <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content> 1.1, 9.8; <jats:italic>P<\/jats:italic> = 0.015) at 6 months postoperative. There were no clinically relevant differences in any secondary outcomes between groups, although patients in the intervention group were more likely to be satisfied with their <jats:styled-content style=\"fixed-case\">PT<\/jats:styled-content>. No serious adverse events related to the intervention were reported.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Supplementing usual care with this group\u2010based outpatient <jats:styled-content style=\"fixed-case\">PT<\/jats:styled-content> intervention led to improvements in function at 12 months after <jats:styled-content style=\"fixed-case\">TKR<\/jats:styled-content>, although the magnitude of the difference was below the minimum clinically important difference of 9 points. However, patient satisfaction was higher in the intervention group, and there was some evidence of clinically relevant improvements in function at 3 months.<\/jats:p><\/jats:sec>","DOI":"10.1002\/acr.23909","type":"journal-article","created":{"date-parts":[[2019,4,29]],"date-time":"2019-04-29T07:44:41Z","timestamp":1556523881000},"page":"768-777","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":21,"title":["Effect of Group\u2010Based Outpatient Physical Therapy on Function After Total Knee Replacement: Results From a Multicenter Randomized Controlled Trial"],"prefix":"10.1002","volume":"72","author":[{"given":"Erik","family":"Lenguerrand","sequence":"first","affiliation":[{"name":"University of Bristol  Bristol UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Neil","family":"Artz","sequence":"additional","affiliation":[{"name":"University of West of England  Bristol UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Elsa","family":"Marques","sequence":"additional","affiliation":[{"name":"University of Bristol  Bristol UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Emily","family":"Sanderson","sequence":"additional","affiliation":[{"name":"University of Bristol  Bristol UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kristina","family":"Lewis","sequence":"additional","affiliation":[{"name":"Southmead Hospital, North Bristol NHS Trust  Bristol UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"James","family":"Murray","sequence":"additional","affiliation":[{"name":"University of Bristol and Southmead Hospital, North Bristol NHS Trust  Bristol UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tarique","family":"Parwez","sequence":"additional","affiliation":[{"name":"Luton and Dunstable Hospital, Luton and Dunstable University Hospital NHS Foundation Trust  Luton UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wendy","family":"Bertram","sequence":"additional","affiliation":[{"name":"University of Bristol and Southmead Hospital, North Bristol NHS Trust  Bristol UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrew D.","family":"Beswick","sequence":"additional","affiliation":[{"name":"University of Bristol  Bristol UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amanda","family":"Burston","sequence":"additional","affiliation":[{"name":"University of Bristol  Bristol UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rachael","family":"Gooberman\u2010Hill","sequence":"additional","affiliation":[{"name":"University of Bristol and NIHR Bristol Biomedical Research Centre, University Hospitals Bristol NHS Foundation Trust  Bristol UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ashley W.","family":"Blom","sequence":"additional","affiliation":[{"name":"University of Bristol, Southmead Hospital, North Bristol NHS Trust, and NIHR Bristol Biomedical Research Centre, University Hospitals Bristol NHS Foundation Trust  Bristol UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vikki","family":"Wylde","sequence":"additional","affiliation":[{"name":"University of Bristol and NIHR Bristol Biomedical Research Centre, University Hospitals Bristol NHS Foundation Trust  Bristol UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2020,5,18]]},"reference":[{"key":"e_1_2_7_2_1","unstructured":"National Joint Registry.15th annual report.2018. 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