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Article

Feasibility and Safety of a Novel Leg Exercise Apparatus for Venous Thromboembolism Prophylaxis after Total Joint Arthroplasty of the Lower Extremities—A Pilot Study

1
Department of Orthopaedic Surgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Ibaraki, Japan
2
Department of Orthopaedic Surgery, Nogami Hospital, Tozakimachi 6-8, Tsuchiura 300-0031, Ibaraki, Japan
3
Department of Rehabilitation Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Ibaraki, Japan
4
Department of Cardiovascular Surgery, Tsukuba Medical Center Hospital, 1-3-1 Amakubo, Tsukuba 305-8558, Ibaraki, Japan
5
Department of Orthopaedic Surgery, Tsukuba Gakuen Hospital, 2573-1 Kamiyokoba, Tsukuba 305-0854, Ibaraki, Japan
6
Department of Orthopaedic Surgery, Kikkoman General Hospital, 100 Miyazaki, Noda 278-0005, Chiba, Japan
*
Author to whom correspondence should be addressed.
Academic Editor: Emilio Quaia
Tomography 2021, 7(4), 734-746; https://doi.org/10.3390/tomography7040061
Received: 9 October 2021 / Revised: 2 November 2021 / Accepted: 2 November 2021 / Published: 4 November 2021
(This article belongs to the Section Cardiovascular Imaging)
Venous thromboembolism (VTE) is a severe complication in orthopedic surgeries. Herein, we developed a novel leg exercise apparatus (LEX) to encourage postoperative limb movement in bedridden patients to prevent VTE. We aimed to evaluate its feasibility and safety in individuals at risk of VTE. Twenty patients (four men, 16 women) who underwent total joint arthroplasty in the lower extremity were enrolled in this prospective study. Exercise using the LEX was performed for 5 min at 30 cycles/min, four times/day during postoperative days 1–7. Clinical assessments included the evaluation of vital signs, venous ultrasonography, and blood tests within seven days postoperatively, and adverse events (pulmonary embolism and cerebral hemorrhage) were monitored. Overall, 16/20 (80%) patients completed the 7-day exercise regimen. There were no cases of severe adverse events, changes in vital signs, or lower-extremity deep vein thrombosis in patients who performed exercises with the LEX. Thus, the results of this pilot study show that this novel apparatus may be a safe and feasible tool for VTE prophylaxis after joint arthroplasty of the lower extremities. View Full-Text
Keywords: leg exercise apparatus; venous thromboembolism prophylaxis; mechanical prophylaxis; arthroplasty; lower extremities leg exercise apparatus; venous thromboembolism prophylaxis; mechanical prophylaxis; arthroplasty; lower extremities
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MDPI and ACS Style

Tanaka, K.; Shimizu, Y.; Kamada, H.; Aikawa, S.; Mishima, H.; Kanamori, A.; Nishino, T.; Sakane, M.; Ochiai, N.; Yamazaki, M. Feasibility and Safety of a Novel Leg Exercise Apparatus for Venous Thromboembolism Prophylaxis after Total Joint Arthroplasty of the Lower Extremities—A Pilot Study. Tomography 2021, 7, 734-746. https://doi.org/10.3390/tomography7040061

AMA Style

Tanaka K, Shimizu Y, Kamada H, Aikawa S, Mishima H, Kanamori A, Nishino T, Sakane M, Ochiai N, Yamazaki M. Feasibility and Safety of a Novel Leg Exercise Apparatus for Venous Thromboembolism Prophylaxis after Total Joint Arthroplasty of the Lower Extremities—A Pilot Study. Tomography. 2021; 7(4):734-746. https://doi.org/10.3390/tomography7040061

Chicago/Turabian Style

Tanaka, Kenta, Yukiyo Shimizu, Hiroshi Kamada, Shizu Aikawa, Hajime Mishima, Akihiro Kanamori, Tomofumi Nishino, Masataka Sakane, Naoyuki Ochiai, and Masashi Yamazaki. 2021. "Feasibility and Safety of a Novel Leg Exercise Apparatus for Venous Thromboembolism Prophylaxis after Total Joint Arthroplasty of the Lower Extremities—A Pilot Study" Tomography 7, no. 4: 734-746. https://doi.org/10.3390/tomography7040061

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