"OSTEOINTEGRATED"
IMPLANT WITH PARTIAL OSTEOINTEGRATION In
this case the "osteointegrated" implant model is identical to the basic
model in terms of discretization, loads and mechanical characteristics, but only
differs because a volume of cancellous bone, rather than cortical bone, has been
reconstructed around the inner part of the prosthetic stem. This model does
not have a true physical significance, given that it is assumed that complete
osteointegration has occurred between the superior cortical bone and the implant,
whereas the lower part of the implant is embedded in cancellous bone. However,
this analysis is useful because it provides an additional comparison with the
tripod implant model, fully embedded in cancellous bone, and offers a means of
visualising the portion of load which, over time, will be sustained by newly formed
internal cortical bone. |