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The outcome of isolated calf muscle vein thrombosis after open reduction and internal fixation for closed intra‐articular distal femur fractures: a prospective cohort study

Authors
  • Chen, Chen1
  • Liu, Ying2
  • Wu, Hengfu2
  • Feng, Jingmin2
  • Li, Ao2
  • Wu, Zhaozhong2
  • 1 the People’s Hospital of Yuxi City, the Sixth Affiliated Hospital of Kunming Medical University, Yuxi, Yunnan, 653100, People’s Republic of China , Yuxi (China)
  • 2 the Second Affiliated Hospital of Guangzhou Medicine University, No. 250 Changgang East Road, Guangzhou, Guangdong, 510260, People’s Republic of China , Guangzhou (China)
Type
Published Article
Journal
BMC Musculoskeletal Disorders
Publisher
Springer (Biomed Central Ltd.)
Publication Date
Apr 28, 2021
Volume
22
Issue
1
Identifiers
DOI: 10.1186/s12891-021-04289-3
Source
Springer Nature
Keywords
License
Green

Abstract

BackgroundTo observe the outcome of isolated calf muscle vein thrombosis (ICMVT) undergoing open reduction and internal fixation (ORIF) for closed intra-articular distal femur fractures (DFFs) and to analyze related factors.MethodsThe study was designed as a prospective clinical cohort study at our hospital. From August 2018 to August 2020,a total of 140 patients with flesh ICMVT after ORIF for closed intra-articular DFFs were collected during hospitalization. After the administration of antithrombotic agents immediately after diagnosis, the location and prognosis of postoperative ICMVT were examined by Duplex ultrasonography (DUS) with a three-month follow-up. There were 29 males and 111 females with the average age of 70.16 ± 8.75 years old. Sonography was used to evaluate the resolution of muscular vein thrombosis at the time point of the third month postoperatively and the results were compared between the two time points. Multivariable analysis was performed to evaluate the relationship between the resolution of ICMVT three months postoperatively and risk factors including age, Body Mass Index (BMI), gender, thrombosis length (> 5 / ≤5 cm), thrombosis diameter(> 0.6/≤0.6 cm), and thrombosis-related biochemistry indices.ResultsThe postoperative ICMVTs was diagnosed at 5.47 ± 2.46 days after ORIF for closed intra-articular DFFs. At the follow up of 3 months,120 cases was tending to disappear with 88 cases(62.9 %) completely dissolved and 32 cases(22.9 %) partly dissolved. There existed 14 cases (10.0 %) without change on the size and 6 cases (4.2 %) with proximal propagation. Multivariate analysis revealed that thrombus diameter over 0.6 cm (odds ratio [OR], 8.900; 95 % confidence interval [CI]: 3.623–21.865), thrombus length over 5.0 cm (OR, 3.904; 95 % CI, 1.121–13.603), FIB over 3.0 g/L (OR, 3.627; 95 % CI, 1.356–9.689), and D-dimer over 1.0 mg/L (OR, 2.602; 95 % CI, 1.075–6.296) were four independent risk factors of non-completely dissolved ICMVTs.Conclusions85.8 % of ICMVT was tending to disappear at the third months after ORIF for closed intra-articular DFFs. Thrombus diameter, thrombus length, FIB, and D-dimer were four independent risk factors of non-completely dissolved ICMVTs. The Thrombus diameter has a significant effect on the natural course of ICMVTs, especially with diameter larger than 0.6 cm.

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