INCIDENTALOMA FOUND IN A METAL-ON-METAL REVISION TOTAL HIP ARTHROPLASTY: A CASE REPORT.

Abstract

Metal-on-metal coupling in total hip replacements has traditionally been a valid alternato other total hip bearings for young adults and very active elderly patients. Unfortunately, clinical experience has revealed that the difference in strength between the titanium alloy stem and the cobalt alloy-bearing surface leads to a conflict between the acetabular component and the head, which inturn leads to abnormal wear and osteolysis. The major problems are osteolysis, metal ion intoxication, potential genome toxicity, neoplasms, allergies and implant failure. The authors present an incidental finding of pseudotumour of the external rotators of the hip in a total hip replacement (THR) revision 68 year old female patient.