Abstract:
Short stemmed-THA is considered as a conservative implant removing
minimal amount of bone from the femoral side and favoring physiological
bone remodeling. These implants avoid stress over load and stress shielding
in the proximal femur. The intent of the design increases the proximal load
transfer and therefore reduces femoral bone resorption. The geometricall y
based wedge-shaped in both AP and lateral planes of these short stem
prosthesis allow immediate stability from multiple points contact of the
femoral stem inserted into a regularly shaped cavity prepared by the
surgeon. Bone mineral density analysis afte r insertion of short stem THA
using DEXA demonstrated no or minimal bone resorption in the proximal
femoral region especially when compared to conventional stems