RESUMEN
Metal-on-metal disease (MOMD) is a rare condition following arthroplasty and has predominantly been reported following hip and knee replacement. Isolated case reports exist with respect to MOMD following total wrist arthroplasty-however, the literature remains limited. Here, we present the history and radiographic and histopathologic features of such a case, and summarize the literature and provide management recommendations.
Asunto(s)
Artroplastia de Reemplazo , Prótesis Articulares de Metal sobre Metal , Artroplastia de Reemplazo/efectos adversos , Artroplastia de Reemplazo/métodos , Humanos , Prótesis Articulares de Metal sobre Metal/efectos adversos , Falla de Prótesis , Muñeca/cirugía , Articulación de la Muñeca/diagnóstico por imagen , Articulación de la Muñeca/cirugíaAsunto(s)
Imagen por Resonancia Magnética/normas , Enfermedades de la Columna Vertebral/diagnóstico por imagen , Infecciones Estafilocócicas/diagnóstico por imagen , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Enfermedades de la Columna Vertebral/rehabilitación , Enfermedades de la Columna Vertebral/terapia , Columna Vertebral/diagnóstico por imagen , Columna Vertebral/patología , Infecciones Estafilocócicas/rehabilitación , Infecciones Estafilocócicas/terapiaRESUMEN
Avascular necrosis (AVN) of the ankle and foot is an uncommon and often unexpected postoperative complication in patients with persistent pain and disability postprocedure. Artifacts from metallic implants may obscure characteristic imaging signs of AVN, and radiography and computer tomography are the mainstay imaging modalities of the postoperative ankle and foot. MRI and nuclear medicine imaging play an important complementary role in problem solving and excluding differential diagnostic considerations including infection, nonunion, occult fracture, and secondary osteoarthritis.This review article evaluates different imaging modalities and discusses characteristic sites of AVN of the ankle and foot in the postoperative setting including the distal tibia, talus, navicular, and first and lesser metatarsals. Radiologists play a key role in the initial diagnosis of postoperative AVN and the surveillance of temporal evolution and complications including articular collapse and fragmentation, thus influencing orthopedic management.