The following tentative conclusions can be drawn about the performance of different types of prostheses. The various designs are described in the full report. Cemented designs in general show good survival results at 10-15 years plus. The rate of acetabular revision in cemented implants remains problematic. The uncoated press-fit and resurfacing types of hip prosthesis have survival results that are notably inferior to those of other types.
Little evidence is available on fully modular prostheses.
Economic modelling Using the economic model developed in this study, the general conclusions under our assumptions are summarised below. Prosthesis cost, hospital costs and revision rate are the components of the model with the greatest impact in terms of changing total expected costs for THR procedures. Very high and very low estimates of hospital costs change the total expected costs for individual prostheses but have little effect on their relative cost-effectiveness compared with each other. Only cemented prostheses are currently available at this price. Conclusions Policy implications is a bullet.