ArticleJournal of orthopaedics2025
Formal physical therapy may be unnecessary following total knee arthroplasty: A prospective randomized study.
Article in Journal of orthopaedics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objectives: Total knee arthroplasty (TKA) is the most commonly performed joint replacement surgery in the United States. With an aging population, the incidence of TKA is expected to significantly increase in future decades. Historically, outpatient physical therapy was considered a crucial aspect of TKA postoperative care. But in recent years, its necessity has been questioned, with national trends moving towards self-directed home exercise programs (HEP) in lieu of formal PT. Methods: A prospective randomized control study was conducted on 341 patients with TKA from January 2017 to December 2018. At 2 weeks, if 90° of flexion was observed, patients were recommended (1) no PT with home-exercises or (2) formal PT. Range of motion was recorded at 6 weeks and 3 months postoperatively. Results: Of the 341 eligible patients who underwent primary TKA, 248 patients were enrolled and randomized to formal PT or HEP. Patients assigned to HEP achieved an average of 109° and 118° of flexion at 6 weeks and 3 months respectively, while patients randomized to PT achieved 106° and 121° of flexion (p > 0.05). All patients achieved a target range of motion greater than 100° at 6 weeks and 110° at 3 months. Patients assigned HEP had an associated average cost savings of $900 per patient compared to PT patients. Conclusion: Formal PT may not be necessary if patients are progressing appropriately after surgery. Instead, a home exercise plan could be a more efficient and cost-effective component of postoperative rehabilitation. Level of evidence: I.
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