We previously combined experimental and computational measures to ascertain whether tibial stem augmentation reduces bone strains beneath constrained condylar implants. Using these same integrated approaches, we examined the benefit of a stem when a wedge is used. Implants were removed from the eight paired cadaver specimens from our previous experiment, and oblique defects created that were re...

There are limited reports of total knee arthroplasty (TKA) in the pediatric population. The use of constrained, stemmed components is particularly unusual in the setting of open physes due to concerns with growth arrest and implant survivorship. The current authors describe a 15-year-old boy with open growth plates and an epiphyseal dysplasia-like condition affecting the knees bilaterally. He h...

We studied the quality of fixation of the tibial component using radiostereometric analysis (RSA) in 40 patients who had undergone a cemented Freeman-Samuelson total knee arthroplasty. They were prospectively randomised to either a stemmed metal-backed (MB) or non-stemmed all-polyethylene (AP) tibial component. The articulating geometry of the implants was identical, as was the operative techni...

The timely notification of cancer cases is crucial for cancer monitoring and prevention. However, the abstraction and classification of cancer from the free-text of pathology reports and other relevant documents, such as death certificates, are complex and time-consuming activities. In this paper we investigate approaches for the automatic detection of cases where the cause of death is a notifi...

Hip resurfacing is a popular treatment for osteoarthritis in young, active patients. Previous studies have shown that occasional failures--femoral neck fracture and implant loosening, possibly associated with bone adaptation--are affected by prosthesis sizing and positioning, in addition to patient and surgical factors. With the aim of improving tolerance to surgical variation, finite element m...

BACKGROUND AND PURPOSE There is an increase in demand for primary and revision total knee joint procedures. We studied implant survival and functional outcome of patients operated with a constrained condylar knee (CCK) or a rotating hinge implant (RH) as a primary or a revision total knee arthoplasty (TKA). PATIENTS AND METHODS We evaluated clinically and radiographically 65 surgical procedur...

Background: Presentation of proximal tibia stress fracture is not infrequent among elderly patients due to their poorbone stock. Optimal management of patients with severe gonarthrosis of the knee and concurrent tibial stress fracture isnot known yet. In this study we report the outcome of primary total knee arthroplasty (TKA) using stemmed componentsin elderly patients.Methods: Between 2009 an...