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[Clinical risk factors for deep vein thrombosis after total hip and knee arthroplasty]

Zhen-peng Guan1, Hou-shan Lü, Yan-zhang Chen

  • 1Arthritis Institute, Peking University People's Hospital, Beijing 100044, China. guan_zhenpeng@sina.com

Insights

Female sex, obesity, and cement use increase deep vein thrombosis (DVT) risk after hip and knee replacement. Rheumatoid arthritis diagnosis appears protective against DVT in these patients.

Area of Science:

  • Orthopedic Surgery
  • Vascular Medicine
  • Clinical Risk Factor Analysis

Context:

  • Deep vein thrombosis (DVT) is a significant complication following major orthopedic procedures like total hip arthroplasty (THA) and total knee arthroplasty (TKA).
  • Prophylactic anticoagulation is standard, yet DVT incidence remains a concern, particularly in specific patient populations.
  • Identifying precise clinical risk factors is crucial for refining preventative strategies in Chinese patients undergoing THA/TKA.

Purpose:

  • To investigate clinical risk factors associated with DVT development in Chinese patients undergoing THA and TKA.
  • To analyze the impact of pre-operative and post-operative clinical factors on DVT incidence despite prophylactic treatment.
  • To identify both risk and protective factors for DVT in this specific surgical context.

Summary:

  • This study analyzed 128 THA/TKA procedures in 95 Chinese patients receiving low-molecular-weight heparin prophylaxis.
  • Color Doppler ultrasonography detected DVT in 47.4% of patients; proximal DVT was 3.2%.
  • Logistic regression identified female sex (OR 10.008), obesity (OR 3.094), and cement usage (OR 8.887) as significant risk factors, while diagnosed rheumatoid arthritis (RA) was a protective factor (OR 0.194).

Impact:

  • Findings highlight specific demographic and procedural factors (female sex, obesity, cement use) that elevate DVT risk post-THA/TKA.
  • The protective role of rheumatoid arthritis warrants further investigation for potential therapeutic insights.
  • Results can inform targeted DVT prevention strategies and risk stratification for orthopedic surgery patients in China.
Abstract

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