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Pseudoaneurysm of the Superior Gluteal Artery: A Rare Complication at a Posterior Iliac Bone Graft Donor Site Treated by NBCA Embolization

上臀動脈之假性動脈瘤-後腸骨移植之罕見併發症成功用NBCA栓塞治療

並列摘要


A 39-year-old man received total hip replacement (THR) with the use of autogenous bone graft from posterior iliac crest and complained of buttock pain after the operation. Persistent oozing from the wound was noted. Contrast enhanced computer tomography (CT) showed a pseudoaneurysm with huge hematoma formation and soft tissue swelling at right gluteus muscles. Emergent angiography showed a pedunculated out-pouching at the right superior gluteal artery. N-butyl-2-cyanoacrylate (NBCA) and lipiodol mixture was infused into the proximal superior gluteal and distal superior gluteal artery adjacent the aneurysm neck. He received another debridement surgery one month later and no active bleeding was noted. Pseudoaneurysms arising from branches of the superior gluteal artery are very rare. It is important to recognize and treat a pseudoaneurysm because of the risk of bleeding during operation and death. Contrast-enhanced CT and angiography is important for detecting abnormal pelvic hemorrhage. Endovascular treatment is a prompt and effective method for pseudoaneurysm treatment.

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