Publications by authors named "I M Pinder"
Article Synopsis
- The study explores synchronization and coherence in a network of delayed Wilson-Cowan nodes, focusing on how intra-nodal and inter-nodal delays impact communication within and between brain regions.
- By analyzing various network structures, including the macaque monkey's cortical layout, the research examines how factors like network configuration, coupling strength, and time delays influence global dynamics, specifically synchrony and metastability.
- The findings reveal significant regions of synchronized states with instabilities, particularly identifying unique time-dependent behaviors in the cortical network that are vital for complex information processing, as opposed to simpler behaviors in toy models.
Background: Several studies have described equivalent performance on radiostereometric analysis at two years for metal-backed compared with all-polyethylene stemmed tibial implants. The purpose of this study was to determine the ten-year survivorship results of these two designs from a large randomized controlled trial.
Methods: Patients who were fifty years old or more, with no history of infection, and were undergoing primary total knee arthroplasty were randomized at the time of surgery to receive either an all-polyethylene or a metal-backed tibial component.
Do we need to replace the patella in knee arthroplasty for rheumatoid disease?
Acta Orthop Belg
August 2008
We have examined the anterior knee function in two patient groups who had undergone primary knee arthroplasty without patellar resurfacing to identify differences for osteoarthrosis compared with rheumatoid disease. We identified two consecutive series of patients who had undergone knee replacement surgery for either osteoarthritis or rheumatoid disease between 1992 and 1994 under the care of a single surgeon using the same implant and surgical technique. There were 90 patients in each group.
View Article and Find Full Text PDFWe have studied a consecutive series of 72 salvage knee procedures using a Kinematic rotating hinge prosthesis performed in a single arthroplasty unit between 1983 and 1997. Clinical and radiographic assessment of the survivorship of the Kinematic rotating hinge total knee arthroplasty (Howmedica, Rutherford, NJ) were analyzed. Survival analysis revealed a best-case 10-year implant survival of 90%.
View Article and Find Full Text PDFBackground And Purpose: Our institution began using the Kinemax total knee arthroplasty system in 1988, both with and without cement fixation. We report 10-year survival figures.
Methods: Theater records showed that 284 Kinemax total knee arthroplasties had been performed 1988 through 1993.