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Hip Int. 2014 Jan-Feb;24(1):77-80. doi: 10.5301/hipint.5000079. Epub 2013 Aug 9.

Prevention of venous thromboembolic events following femoroacetabular osteoplasty: aspirin is enough for most.

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  • 1The Rothman Institute, Philadelphia, Pennsylvania - USA.



As hip-preservation surgery is performed in a particularly young and active group of patients, the knowledge accrued in the fields of hip arthroplasty and hip fracture care regarding postoperative thromboprophylaxis cannot be extrapolated to this patient population. Recommendations based on the evidence for each particular surgical procedure and population is desirable. For these reasons, the purpose of our study is to describe the rate of clinically relevant venous thromboembolism (VTE) and anticoagulation-related complications observed in patients undergoing hip-preservation surgery through mini-open femoracetabular osteoplasty (FAO) with a formal postoperative thromboprophylaxis protocol of aspirin dosing.


A prospective case series of 407 consecutive FAO procedures in 375 patients of mean age 34.5 ± 11.1 years (range 15-62 years) were followed six weeks post operatively to document the presence of clinically relevant VTE as well as major bleeding events, as defined by the most recent American College of Chest Physicians Evidence-Based Clinical Practice Guidelines. All patients were given aspirin 325 mg by mouth daily for two to four weeks.


There was one case of distal DVT in a 31-year-old male with no specific risk factors. No cases of pulmonary embolism were observed. There were no major bleeding events or reoperations due to postsurgical haematoma. There were no deaths. The crude incidence of clinically relevant VTE was 1 per 407 procedures (0.25%).


Aspirin is a safe and effective modality to provide thromboprophylaxis in patients undergoing hip-preservation surgery. The rate of VTE that we observed is, thus far, the lowest in comparison to other published series of hip preservation surgery that specifically focused on this complication.

[PubMed - indexed for MEDLINE]
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