Hip arthroplasty can be considered one of the major successes of orthopedic surgery, with
more than 350000 replacements performed every year in the United States with a constantly …

Interest in the rheology and effects of interacting surfaces is as ancient as man. This subject
can be represented by a recently coined word: tribology. This term is derived from the Greek …

A good biocompatibility, excellent mechanical properties and high corrosion resistance
characterize CoCrMo alloys. Therefore they are widely used for artificial joints in biomedical …

BACKGROUND: A stable fixation between femoral head and endoprosthesis taper is
necessary to prevent relative motions and corrosion at the taper junction. Although the …

Reverse shoulder arthroplasty is being used more frequently to treat irreparable rotator cuff
tears in the presence of glenohumeral arthritis and instability. To date, however, design …

Background Positioning of total hip bearings involves tradeoffs, because cup orientations
most favorable in terms of stability are not necessarily ideal in terms of reduction of contact …

In replacement surgery of the hip joint, an implant is replaced into the natural femur which
recreates the articulation and functionally of a natural joint. Total hip replacement is …

A new instrumented hip joint prosthesis was developed which allows the in vivo
measurement of the complete contact loads in the joint, ie 3 force and 3 moment …

Introduction The use of metal-on-metal (MoM) total hip arthroplasty (THA) increased in the
last decades. A release of metal products (ie particles, ions, metallo-organic compounds) in …

PEEK-OPTIMA™ is being considered as an alternative bearing material to cobalt chrome in
the femoral component of total knee replacement to provide a metal-free implant. The aim of …