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. 2019 Sep 11;3(3):183-188.
doi: 10.1016/j.jses.2019.07.003. eCollection 2019 Oct.

Risk factors for venous thromboembolism in total shoulder arthroplasty

Brandon E Lung  1 , Shrey Kanjiya  2 , Michael Bisogno  2 , David E Komatsu  2 , Edward D Wang  2
Affiliations

Risk factors for venous thromboembolism in total shoulder arthroplasty

Brandon E Lung et al. JSES Open Access. .

Abstract

Background: Although venous thromboembolism (VTE) has been studied in lower-extremity arthroplasty, there are few guidelines regarding established risk factors for VTE in total shoulder arthroplasty (TSA). With literature suggesting the VTE rate may be as high as 13%, VTE prevention and risk factors should be considered in preoperative planning.

Methods: All TSAs from 2011 through 2016 were queried from the National Surgical Quality Improvement Program database. Age, sex, body mass index, American Society of Anesthesiologists class, ethnicity, functional status, comorbidities, discharge destination, surgical indication, length of stay, and operative time were compared between patients with and without 30-day postoperative VTE. Pearson χ2 and t tests were used to assess baseline categorical and continuous variables, respectively. Multivariate logistic regression analysis was conducted to determine associated independent risk factors for VTE.

Results: The analysis included 13,299 patients; VTE developed in 83 patients (0.62%). Patients with VTE were older (72 years vs. 69 years) and had a longer hospital stay (3.5 days vs. 1.9 days). Compared with patients with no VTE, patients with VTE were more likely to undergo TSA for proximal humeral fractures, to be discharged to a rehabilitative center, to have a preoperative albumin level lower than 3.5 g/dL, to undergo non-elective surgery, to have an American Society of Anesthesiologists class of 3 or greater, to have a surgical-site infection develop, and ultimately to need a shoulder reoperation (all P < .05). Multivariate logistic regression analysis revealed that hypoalbuminemia (albumin level < 3.5 g/dL), an increased length of stay, and African American ethnicity were independent risk factors for VTE development.

Conclusion: Patients with hypoalbuminemia, an increased length of stay, and African American ethnicity are at an increased risk of VTE after shoulder arthroplasty. A high index of suspicion is warranted for elderly patients with fractures who may need preoperative medical optimization.

Keywords: Shoulder arthroplasty; complications; deep vein thrombosis; discharge destination; pulmonary embolism; venous thromboembolism.

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