Abstract: The present disclosure relates to synthetic bones used in bone-related human and animal education, product demonstration, product development, surgical technique discussions, anatomical demonstrations and biomechanical research. The synthetic bones consisting of cortical an cancellous bones containing a plastic casting resin, a pore inducing additive and a hardness-altering additive.

Abstract: An artificial bone is provided comprising an inner core made from a porous material, the porous material comprising at least one fiber component having fibers, a liquid and a binder, and an outer layer comprising at least one fiber component having fibers, a liquid and a binder, wherein the ratio of the at least one fiber component having fibers to liquid to binder of the inner core is different from the ratio of the at least one fiber component having fibers to liquid to binder of the outer layer.

Abstract: An artificial bone is provided comprising an inner core made from a porous material, the porous material comprising at least one fiber component having fibers, a liquid and a binder, and an outer layer comprising at least one fiber component having fibers, a liquid and a binder, wherein the ratio of the at least one fiber component having fibers to liquid to binder of the inner core is different from the ratio of the at least one fiber component having fibers to liquid to binder of the outer layer.

Abstract: The present disclosure pertains to apparatus and methods for positioning the angular orientation and depth positioning of an acetabular component during hip arthroplasty procedures. The apparatus comprises a positioning member and guiding member set according to a preoperatively determined angular orientation derived from a pelvic radiograph or radiographs in accordance with the methods provided.

Abstract: A device for marking bone such as a patella is anchored to one surface of the bone, whereby the contact with the surface defines the desired resection plane, and then a cautery or other marking device is used to mark the bone relative to this plane. The marking device is removed and then the bone may be resected using techniques known in the art. A device for measuring the remaining bone allows a user to measure bone thickness and visually estimate superoinferior angle or mediolateral angle of the resected surface relative to the desired resection plane. The measuring device may optionally be used with a computer-assisted surgical system for numerical measurements.