Iliopsoas bursitis and femoral vein thrombosis complicating total hip arthroplasty in an elderly patient

Predominantly, cystic or solid extra-articular pelvic masses have been increasingly recognized as a complication of hip arthroplasty and have been described in association with both metal-on-polyethylene and metal-on-metal implants. These late and uncommon complications cause a number of clinical symptoms, including limb swelling and erythema, pain, limp or restricted movement, palpable groin lump, femoral nerve irritation or palsy. Here, we report a case of a hemorrhagic cystic mass causing deep vein thrombosis (DVT) in the femoral vein 9 years after the patient had undergone a ceramic-on-ceramic cementless total hip arthroplasty.