title: Revising the well-fixed, painful resurfacing using a double-mobility head: a new strategy to address metal-on-metal complications.
abstract: Isolated revision of the femoral component of hip resurfacings to metal-on-metal (MoM) total hip arthroplasties has shown inferior results. We present a case series of well-fixed, painful MoM hips with elevated chromium and cobalt levels. An isolated femoral revision using a noncemented femoral component and a double-mobility head was performed. Patients were followed up for 6 months and showed excellent improvements in visual analog score and Hip dysfunction and Osteoarthritis Outcome Score (HOOS). Cobalt and chromium levels dropped at 6 weeks and were normal at 6 months. Although our follow-up is short, we feel that it is important to highlight this as a potential treatment strategy. This revision is less aggressive than traditional methods, eliminates the concerns from MoM bearings, and results in a stable construct.
authors: AZ Groeninge Kortrijk, Burgemeester Vercruysselaan 5, 8500 Kortrijk, Belgium.
authors: Luk A
authors: LA
authors: Verhelst
authors: Hans
authors: H
authors: Van der Bracht
authors: Ivor S
authors: IS
authors: Vanhegan
authors: Bart
authors: B
authors: Van Backlé
authors: Jo
authors: J
authors: De Schepper
mesh_terms: D000328:Adult; D000368:Aged; D002857:Chromium; D003035:Cobalt; D005260:Female; D005500:Follow-Up Studies; D006621:Hip Joint / Q000000981:diagnostic imaging; D006622:Hip Prosthesis; D006801:Humans; D008670:Metals; D008875:Middle Aged; D011183:Postoperative Complications; D011474:Prosthesis Design; D011859:Radiography; D012086:Reoperation
chemical_list: D008670:Metals; D002857:Chromium; D003035:Cobalt