Before the advent of total joint replacement, patients who had end-stage arthritis of the lower
extremities had unremitting pain and a greatly decreased functional capacity. In addition …

All wear-measurement techniques assess femoral head penetration and therefore cannot
distinguish between true polyethylene wear and bedding-in. Multiple wear measurements …

Background: Wear of ultra-high molecular weight polyethylene acetabular cups in hip
prostheses produces billions of submicrometer wear particles annually that can cause …

A two-dimensional accelerometer worn on the ankle (step activity monitor [SAM]; Prosthetic
Research Study, Seattle, WA) has been proved to be highly accurate for assessing walking …

Background: We examined the relationship between long-term femoral-head-penetration
patterns and osteolysis in a ten-year follow-up study of a well controlled patient population …

The purpose of the current study was to update the results of a prospective, single-surgeon
series of primary Charnley total hip arthroplasties performed with cement. This investigation …

The three-dimensional technique is a method for the measurement of polyethylene wear in
patients with total hip joint replacement. Application of image processing technology allows …

We report the updated results for a previously evaluated cohort of patients who were less
than fifty years old when they underwent Charnley total hip arthroplasty with cement. The …

Background: Although cementless acetabular components are routinely used in revision hip
surgery, few investigators have evaluated the retention and efficacy of these components in …

We assessed the correlation between activity level, length of implantation (LOI), and wear in
total knee arthroplasty. Twenty-eight implants were retrieved at autopsy from 8 men and 15 …