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Case Reports
Failed Metal-on-Metal Total Hip Arthroplasty Presenting as Painful Groin Mass With Associated Weight Loss and Night Sweats
Am J Orthop. 2010 May;39(5):E46-E49
Author and Disclosure Information
Håvard Molvik, MRCS, Sammy A. Hanna, MRCS, and Nicholas J. de Roeck, FRCS (Orth)
Mr. Molvik is Core Trainee in Orthopaedics, Mr. Hanna is Specialist Orthopaedic Registrar, and Mr. de Roeck is Consultant Orthopaedic Surgeon, Department of Orthopaedic Surgery, Lister Hospital, East and North Hertfordshire NHS Trust, Stevenage, United Kingdom.
We report an unusual case of a failed metal-on-metal total hip arthroplasty presenting as a groin mass with associated weight loss, night sweats, and raised inflammatory markers. After a malignant process was ruled out, the patient was found to have a loose acetabular component. Histopathologic results revealed features of an aseptic lymphocytic vasculitic associated lesion. All symptoms resolved completely after the metal-on-metal bearing was revised to metal-on- polyethylene.