• Paul Köglberger, Alexander Wurm, Débora Coraça-Huber, Martin Krismer, Wilhelm Oberaigner, and Michael Liebensteiner.
• Medical University of Innsbruck, Innsbruck, Austria.
• Arch Orthop Trauma Surg. 2022 Oct 1; 142 (10): 2497-2501.

IntroductionTo retrospectively investigate the early postoperative range of motion (ROM) (days 4, 7, 10) after total knee arthroplasty (TKA) and to test for associations (a) with long-term outcome in terms of ROM and (b) with a disease-specific knee score.Materials And MethodsA retrospective analysis was performed in patients with previous primary TKA. Data taken from the medical records were ROM from preoperative and postoperative days 4, 7 and 10 and 1 year. As patient-reported outcome the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC Score) was taken from preoperative and one year after TKA.Results316 patients (330 knees) were available. Only negligible correlations were determined between ROM at twelve months postoperative and ROM in the early postoperative days (days 4, 7, 10). Similarly, only negligible correlations were determined between ROM in the early postoperative days (days 4, 7, 10) and the 1-year WOMAC.ConclusionFrom the main findings it would seem that steepness of ROM ascent in the early postoperative days is of minor importance for (a) long-term ROM and (b) long-term knee score outcome after TKA.© 2021. The Author(s).

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