Rheumatoid arthritis: A risk factor for deep venous thrombosis after total knee arthroplasty? Comparative study with osteoarthritis

Yasuo Niki, Hideo Matsumoto, Akihiro Hakozaki, Takeshi Mochizuki, Shigeki Momohara

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Background: Recent advances in the understanding of blood coagulation processes favor an inflammatory basis for thrombotic events. In this study, thrombotic risk after total knee arthroplasty (TKA) was assessed and compared between patients with rheumatoid arthritis (RA) and those with osteoarthritis (OA). Methods: Subjects comprised 199 patients (238 knees) with RA and 156 patients (169 knees) with OA. Serum D-dimer levels were measured before and after the operation. Lowdose unfractionated heparin was given for 7 days when patients had a history of previous venous thromboembolism or had a D-dimer level or ≥10 μg/ml of D-dimer on postoperative day 1. Doppler ultrasonography (DUS) was routinely performed preoperatively and on postoperative day (POD) 7 for diagnosing a deep venous thrombosis (DVT). Results: D-dimer levels on PODs 0, 1, and 7 were, respectively, 4.6, 37.2, and 11.2 μg/ml for RA and 1.8, 42.3, and 13.6 μg/ml for OA. The incidence of DUS-confirmed DVT was 20.6% in the RA group and 43.2% in the OA group, indicating a much higher incidence of postoperative DVT in OA patients (P < 0.001). Interestingly, when patients taking nonsteroidal antiinflammatory drugs (NSAIDs) or those >65 years of age were excluded, the incidence of DVT was comparable in the RA and OA groups. Symptomatic pulmonary embolism and DVT occurred in two and one OA patients and in one and two RA patients, respectively, with one postdischarge DVT included in each group. Conclusions: The present study revealed that the incidence of DVT following TKA was significantly lower in RA patients than in those with OA. However, when the patients were matched for age and NSAID use, the incidence of DVT was equivalent in the two groups. These findings may allow us to reconsider a prophylactic regimen for venous thromboembolism in patients with RA.

Original languageEnglish
Pages (from-to)57-63
Number of pages7
JournalJournal of Orthopaedic Science
Volume15
Issue number1
DOIs
Publication statusPublished - 2010 Jan

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Knee Replacement Arthroplasties
Venous Thrombosis
Osteoarthritis
Rheumatoid Arthritis
Doppler Ultrasonography
Incidence
Venous Thromboembolism
Knee Osteoarthritis
Blood Coagulation
Non-Steroidal Anti-Inflammatory Agents
Pulmonary Embolism
Heparin
Knee
Cohort Studies

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

Cite this

Rheumatoid arthritis : A risk factor for deep venous thrombosis after total knee arthroplasty? Comparative study with osteoarthritis. / Niki, Yasuo; Matsumoto, Hideo; Hakozaki, Akihiro; Mochizuki, Takeshi; Momohara, Shigeki.

In: Journal of Orthopaedic Science, Vol. 15, No. 1, 01.2010, p. 57-63.

Research output: Contribution to journalArticle

Niki, Yasuo ; Matsumoto, Hideo ; Hakozaki, Akihiro ; Mochizuki, Takeshi ; Momohara, Shigeki. / Rheumatoid arthritis : A risk factor for deep venous thrombosis after total knee arthroplasty? Comparative study with osteoarthritis. In: Journal of Orthopaedic Science. 2010 ; Vol. 15, No. 1. pp. 57-63.
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