• Katarzyna Ogrodzka-Ciechanowicz, Grzegorz Głąb, Elżbieta Ciszek-Radwan, Jakub Ślusarski, and Artur Gądek.
• Institute of Clinical Rehabilitation, Faculty of Motor Rehabilitation, University of Physical Education in Krakow, Poland.
• Medicine (Baltimore). 2021 Jul 9; 100 (27): e26572e26572.

ContextThere are no scientific reports unambiguously describing the efficacy of alternating magnetic field therapy in patients after anterior cruciate ligament (ACL) reconstruction in the early postoperative period.ObjectiveThis study aims to evaluate the efficacy of using an alternating magnetic field in the resorption of postoperative joint effusion in patients after ACL reconstruction.Study DesignA randomized, double-blind placebo-controlled study.SettingInpatients.ParticipantsForty patients were enrolled in the trial. However, the final study group consisted of 38 patients (28 men and 10 women) after ACL reconstruction who were randomly divided into an experimental group (19 patients) and a control group (19 patients).InterventionEach group received magnetic field therapy in the postoperative period, but only 1 apparatus emitted a magnetic field (the experimental group). Patients used the apparatus every day for 30 minutes for the next 11 days. The parameters in both devices were the same-3 mT and 10 Hz.Main Outcome MeasuresThe measurement of the knee circumference and range of motion were made. The knee circumference measurement was performed before magnetic field therapy began and for 11 days after magnetic field treatment. The active knee range of motion was evaluated before and after magnetic field therapy was completed.ResultsThere were no statistically significant differences between the groups in the reduction of post-operative joint effusion or knee joint function.ConclusionIn patients after ACL reconstruction, in whom an alternating magnetic field was used to treat postoperative joint effusion, there were no beneficial effects on the analyzed variables compared to the control group.Copyright © 2021 the Author(s). Published by Wolters Kluwer Health, Inc.

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