Intrapelvic Pseudotumor Presenting with Deep Vein Thrombosis After Hip Replacement with Metal-on-Metal Bearing Surface Implant: A Case Report.

CASE: A 61-year-old woman with an asymptomatic hip presented acutely with a swollen lower limb 15 years after a metal bearing surface total hip replacement (THR). A large intrapelvic pseudotumor was discovered compressing her femoral and iliac vessels. Collaboration between an orthopaedic and vascular surgeon led to a 2-stage surgical procedure with resection of the pseudotumor, followed by revision of the THR implant 3 months later. CONCLUSION: This case demonstrates the importance of long-term follow-up of patients with metal bearing surface implants, early recognition of an unusual presentation of a common problem, and the utility of collaboration between orthopaedic and vascular surgeons.