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Home-Health-Care Physical Therapy Improves Early Functional Recovery of Medicare Beneficiaries After Total Knee Arthroplasty.

Falvey JR, Bade MJ, Forster JE, Burke RE, Jennings JM, Nuccio E, Stevens-Lapsley JE. Home-Health-Care Physical Therapy Improves Early Functional Recovery of Medicare Beneficiaries After Total Knee Arthroplasty. The Journal of Bone and Joint Surgery. American volume. 2018 Oct 17; 100(20):1728-1734.

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BACKGROUND: Home-health-care utilization after total knee arthroplasty (TKA) is increasing. Recent publications have suggested that supervised rehabilitation is not needed to optimize functional recovery after TKA; however, few studies have evaluated patients in home-health-care settings. The objectives of this study were to (1) determine whether physical therapy (PT) utilization is associated with functional improvements for patients in home-health-care settings after TKA and (2) determine which factors are related to utilization of PT. METHODS: This study was an analysis of Medicare home-health-care claims data for patients treated with a TKA in 2012 who received home-health-care services for postoperative rehabilitation. Multivariable linear regression models were used to evaluate relationships between PT utilization and recovery in activities of daily living (ADLs). Negative binomial regression models were used to determine factors associated with PT utilization. RESULTS: Records from 5,967 Medicare beneficiaries were evaluated. Low home-health-care PT utilization ( = 5 visits) was associated with less improvement in ADLs compared with 6 to 9 visits, 10 to 13 visits, or = 14 visits. Compared with low home-health-care utilization, utilization of 6 to 9 visits was associated with a 25% greater improvement in ADLs over the home-health-care episode (p < 0.0001); 10 to 13 visits, with a 40% greater improvement (p < 0.0001); and = 14 visits, with a 50% greater improvement (p < 0.0001). The findings remained robust following adjustments for medical complexity, baseline functional status, and home-health-care episode duration. After adjustment, lower PT utilization was observed for patients receiving home health care from rural agencies (10.7% fewer visits, 95% confidence interval [CI] = 7.9% to 13.7%), those with depressive symptoms (4.8% fewer visits, 95% CI = 1.3% to 8.3%), and those with any baseline dyspnea (5.3% fewer visits, 95% CI = 3.1% to 7.5%). CONCLUSIONS: Low home-health-care PT utilization was significantly associated with worse recovery in ADLs after TKA for Medicare beneficiaries, after controlling for medical complexity, baseline function, and home-health-care episode duration. Patients who are served by rural agencies or who have higher medical complexity receive fewer PT visits after TKA and may need closer monitoring to ensure optimal functional recovery. LEVEL OF EVIDENCE: Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.

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