Lately, concerns have arisen following the use of large metal-on-metal bearings in hip
replacements owing to reports of catastrophic soft-tissue reactions resulting in implant failure …

Theoretical, desirable features of second-generation metal-on-metal (MoM) hip prostheses
have led to their widespread use. However, the bearing surfaces, consisting of complex …

This study reports the mid-term results of a large-bearing hybrid metal-on-metal total hip
replacement in 199 hips (185 patients) with a mean follow-up of 62 months (32 to 83). Two …

Background Pseudotumors are sterile inflammatory lesions found in the soft tissues
surrounding metal-on-metal (MOM) and metal-on-polyethylene hip arthroplasties. In patients …

In prosthesis, tribochemical reactions occur at the stem/bone interface. When coupled with
micro-motions it can lead to the loosening of the implant, osteolysis, release of metal ion and …

Question 1: Do you agree with the American Academy of Orthopaedic Surgeons algorithm
for the diagnosis of periprosthetic joint infections (PJIs)? Recommendation: Yes. However …

Introduction The incidence and natural course of pseudotumors in metal-on-metal total hip
arthroplasties is largely unknown. The objective of this study was to identify the true …

Background Large-diameter femoral heads for metal-on-metal THA hold theoretical
advantages of joint stability and low bearing surface wear. However, recent reports have …

Ti6Al4V-alloy is commonly used in dental and orthopedic applications where tribochemical
reactions occur at material/bone interface. These reactions are one of the main concerns …

Bioengineering reasons for increased wear and failure of metal-on-metal (MoM) bearings in
hip prostheses have been described. Low wear occurs in MoM hips when the centre of the …