Femoral Taperosis in Total Hip Arthroplasty

Today, Total Hip Replacement has become one of the most common orthopedic surgeries such that it provides better life conditions for patients suffering from complex and painful lesions. Considering the ever increasing growth of such surgeries, it is necessary to introduce new challenges and threats of this context. Wear and corrosion in design variables and stem production related to hip replacement surgery has always been debated. This paper tries to describe the scientific knowledge of problems in wear and corrosion of stem's neck cone region because neglecting this issue may cause a disaster. Following different shear forces in the area shared between prosthetic head and cone region of the prosthetic stem, corrosion caused by friction and wearing in the surface shared between these two which is referred to as Taperosis, creates metal ions and very small particles released from metal surface on poly ethylene liners of hip replacement which results in metallosis, bone osteolysis and instability of the prosthesis. Clinical importance of Taperosis is still unknown but its role in destructive interactions is increasing. This paper investigates the valid papers of previous and recent studies in this context to describe this challenge and tries to clarify the importance of this issue.