BMC musculoskeletal disorders · 2026
Dislocation of total hip arthroplasty prosthesis after transarterial embolization of a pseudoaneurysm: case report.
Клинический случайСтатьяНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
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Chang Hsu-Chao, Chow Po-Chih, Lu Chia-Hung
Аннотация
BACKGROUND: While pseudoaneurysm is a rare complication following total hip arthroplasty (THA), subsequent prosthesis dislocation after embolization is even more exceptional. We report such a case and discuss the potential underlying mechanisms.
CASE PRESENTATION: We report the case of an 83-year-old woman who developed a right medial femoral circumflex artery pseudoaneurysm one month after THA, for which she underwent emergent transarterial embolization (TAE). One day after the procedure, she returned to the emergency department with a THA dislocation. Computed tomography (CT) imaging confirmed that the pseudoaneurysm had enlarged and transformed into a hematoma following TAE. The resulting mass effect led to a rare complication: mechanical displacement leading to dislocation of the prosthesis. The patient underwent open reduction with evacuation of the blood clot and was discharged in stable condition.
CONCLUSION: Clinicians should be aware that pseudoaneurysms may rapidly progress into hematomas following embolization. The resulting increase in mass effect can lead to the mechanical displacement of a prosthesis-an exceptionally rare complication that requires prompt diagnosis and management.
CASE PRESENTATION: We report the case of an 83-year-old woman who developed a right medial femoral circumflex artery pseudoaneurysm one month after THA, for which she underwent emergent transarterial embolization (TAE). One day after the procedure, she returned to the emergency department with a THA dislocation. Computed tomography (CT) imaging confirmed that the pseudoaneurysm had enlarged and transformed into a hematoma following TAE. The resulting mass effect led to a rare complication: mechanical displacement leading to dislocation of the prosthesis. The patient underwent open reduction with evacuation of the blood clot and was discharged in stable condition.
CONCLUSION: Clinicians should be aware that pseudoaneurysms may rapidly progress into hematomas following embolization. The resulting increase in mass effect can lead to the mechanical displacement of a prosthesis-an exceptionally rare complication that requires prompt diagnosis and management.