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Updated: Jul 16, 2026

Point-Of-Care Ultrasound Screening for Proximal Lower Extremity Deep Venous Thrombosis
Published on: February 10, 2023
Operative Duration as an Independent Risk Factor for Lower-Extremity Deep Vein Thrombosis Following Shoulder
Yue Wang1, Baocai Zhang2, Haoran Guo1
1Department of Sports Medicine, Orthopaedics Clinic, The First Hospital of Jilin University, Changchun, China.
Venous thromboembolism (VTE) occurs more often after shoulder arthroscopy than previously thought. Longer surgery times significantly increase the risk of deep vein thrombosis (DVT).
Area of Science:
- Orthopaedic Surgery
- Vascular Surgery
- Diagnostic Imaging
Background:
- Venous thromboembolism (VTE) is a serious complication after orthopaedic surgery.
- The incidence and risk factors for VTE after shoulder arthroscopy are not well understood.
- Current evidence may underestimate VTE incidence due to reliance on symptom-based diagnosis.
Purpose of the Study:
- To determine the real-world incidence of VTE after shoulder arthroscopy using systematic ultrasonographic screening.
- To identify independent risk factors for VTE in this patient population.
Main Methods:
- Prospective cohort study of 282 patients undergoing elective shoulder arthroscopy.
- Bilateral lower extremity venous color Doppler ultrasonography performed preoperatively and postoperatively.
- Logistic regression analysis to identify independent predictors of deep vein thrombosis (DVT).
Main Results:
- The incidence of postoperative DVT diagnosed by ultrasound was 7.8%.
- Longer operative duration was identified as an independent risk factor for DVT (OR 2.86 per hour).
- No other clinical or laboratory variables were significantly associated with DVT in multivariate analysis.
Conclusions:
- Shoulder arthroscopy is associated with a higher VTE rate than previously recognized.
- Operative duration is a significant, identifiable risk factor for VTE.
- Findings suggest reconsidering VTE risk assessment and exploring risk-stratified prevention strategies.
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