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Article type: Research Article
Authors: Chen, Jia-Hao | Zhou, Hang | Zhang, Qiang | Wang, Hu | Hidig, Sakarie Mustafe | Chen, Xiang-Yang; * | Feng, Shuo; *
Affiliations: Department of Orthopedic Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
Correspondence: [*] Corresponding authors: Shuo Feng and Xiang-Yang Chen. E-mail: xzfs0561@163.com.
Abstract: BACKGROUND: The main objective of this study was to predict the status of blood and the occurrence of lower limb deep vein thrombosis (DVT) after total knee arthroplasty(TKA) by means of mean platelet volume (MPV) combined with thromboelastography (TEG). METHODS: We collected 180 patients who underwent unilateral total knee arthroplasty between May 2015 and March 2022, and the patients were divided into DVT group and control group according to whole-leg ultrasonography on the seventh postoperative day. Blood count and TEG were performed on the day before surgery, the first day after surgery and the seventh day respectively. Multifactorial analysis was used to investigate whether the relevant parameters were independent predictors of DVT after TKA. RESULTS: MPV has the strongest correlation with the maximum amplitude (MA), followed by alpha-angle; MPV and alpha-angle on the first postoperative day are independent predictors of DVT. MPV in patients with thrombosis tends to rise and then fall in the perioperative period. The optimal threshold for MPV to predict thrombosis is 10.85 fL and the area under the ROC curve is 0.694, The area under the ROC curve increases to 0.815 using MPV combined with alpha-angle. In addition, MA, α-angle, composite coagulation index (CI) and MPV were all statistically higher in the DVT group than in the control group (p < 0.001). CONCLUSION: MPV is a predictor of DVT after TKA. It can reflect the hypercoagulable state of blood after surgery; Combination of MPV and alpha-angle on the first day after surgery in patients with TKA improves predictive power of DVT.
Keywords: Thromboelastography, total knee arthroplasty, mean platelet volume, deep vein thrombosis
DOI: 10.3233/CH-231802
Journal: Clinical Hemorheology and Microcirculation, vol. 84, no. 3, pp. 321-331, 2023
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