Background: Prevention and detection of thromboembolism with pelvic and acetabular fractures remains controversial. The aim of this study was to evaluate a protocol using LMWH prophylaxis and duplex screening both pre-operatively (if there is a delay > 72 h to surgery) and post-operatively at day 5-7. We assessed the incidence of thromboembolism and associated risk factors.
Methods: A total of 255 consecutive patients who underwent pelvic and/or acetabular reconstruction in a major trauma and tertiary referral centre between January 2013 and December 2015 were studied. Forty-three patients were excluded due to non-adherence to protocol leaving 212 patients included in the study.
Results: Patients were of mean age 49 years (15-94) and mean ISS 24.5 (4-66). Pre-operative screening detected two patients with asymptomatic above-knee DVT who then underwent pre-operative IVC filter insertion. Post-operative screening detected seven patients (3%) with lower limb DVTs (3 proximal and 4 below knee). The three patients with proximal DVTs were fully anticoagulated and did not develop symptomatic PE. Six patients (2.8%) developed post-operative PE, four of which were symptomatic and confirmed by CT angiography. Seven patients (3%) died in the post-operative period due to non-VTE-related causes. The overall rate of VTE was 6%, including DVT 4% and PE 2.8%. PE was associated with administration of tranexamic acid in ED (p > 0.03) and total amount of blood transfused during admission (p > 0.001). VTE was not associated with age, injury type, ISS, delay to surgery or associated injuries.
Conclusion: A protocol-based approach to VTE prophylaxis and screening in trauma patients with pelvic and/or acetabular reconstruction resulted in no VTE-related mortality. Pre- and post-operative screening for DVT changed the management in five patients, with none developing PE. Patients requiring more aggressive resuscitation had a higher rate of PE. The VTE rate was lower than previously reported.
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