Pseudotumor Associated with Dall-Miles Cable Breakage Following Revision Total Hip Arthroplasty: A Case Report

Abstract

A pseudotumor is a benign granulomatous or cystic lesion associated with the deposition of metal debris in joint arthroplasties. To the best of our knowledge, this is the first report on a pseudotumor caused by the breakage of the Dall-Miles cable grip system, a multifilament cable used to fix the trochanteric osteotomy in revision total hip arthroplasty. This rare case demonstrates that pseudotumor formation can be caused by various types of orthopedic materials and implant components. When encountering a palpable mass around an orthopedic implant, a pseudotumor should be considered along other differential diagnoses. To treat pseudotumors and also prevent recurrence, its complete resection and sufficient removal of orthopedic materials are necessary.