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General Orthopaedics

INCIDENCE OF SYMPTOMATIC VENOUS THROMBO-EMBOLISM (VTE) FOLLOWING SHOULDER SURGERY

Indian Orthopaedic Society UK (IOS)



Abstract

This clinical study was performed to establish the incidence of deep vein thrombosis (DVT) and pulmonary embolism (PE) after shoulder surgery. The incidence of venous thrombo-embolism complicating shoulder surgery is poorly described in literature. As VTE is a potentially fatal condition we wanted to make surgeons aware of the problem and to try to establish any risk factors contributing to it.

We reviewed retrospectively clinical records of all patients who had any procedure performed on their shoulder between 2001 and 2009 in our institution. In operating theatre coding database we identified 920 patients. Their records were assessed for any admissions due to proven DVT or PE; we looked for any radiological results suggestive of or confirming venous thromboembolism.

We identified 920 patients who had surgical procedure under GA on their shoulder. 126 patients had shoulder arthroplasty, other procedures commonly undertaken were: subacromial decompression, shoulder stabilization and shoulder manipulations. There was 1 fatal PE in this group – patient died within 48 hours following total shoulder replacement, post mortem revealed massive pulmonary embolism with no sing of neither upper nor lower limb DVT. There were 3 cases of symptomatic DVT confirmed by USS Doppler. No upper limb symptomatic DVT was identified. There were 7 patients who had negative tests for suspected thrombosis (2 negative tests for suspected PE, 5 negative tests for suspected DVT).

There is very limited evidence in literature on VTE following upper limb surgery. Recent studies suggest that DVT incidence following arthroplasty is as high as 13%, with further 3% incidence of PE. In our study we examined occurrence of symptomatic VTE only. According to our results the incidence of symptomatic DVT following shoulder surgery is about 0.35% and symptomatic PE about 0.1 %. We did not manage to show any risk factors associated strongly with post operative DVT in our group. The prevalence of asymptomatic VTE is probably much higher and further research needs to be undertaken in that area. On base of our experience we would not recommend routine anticoagulation as a DVT prophylactic after shoulder surgery unless there are additional risk factors.