Abstract: A three-dimensional model for demonstrating an osteotomy surgical procedure is provided. The three-dimensional model includes a support, a healthy hip with a socket, a diseased hip with a socket, a healthy femur, a diseased femur with a removable proximal portion, a removable spacer for the healthy hip socket, a removable socket insert for the diseased hip socket, a ball socket insert to replace the socket insert, and a femoral implant to replace the diseased femur proximal portion.

Abstract: A three-dimensional model for demonstrating an osteotomy surgical procedure is provided. The three-dimensional model includes a support, a first bone coupled to the support, and a second bone coupled to the support. The first bone includes a body defining a recess including a surface having an embedded magnet, a removable intermediate bone block disposed within the recess, and a removable surface bone block, disposed within the recess, including at least one embedded magnet. The removable intermediate bone block and the removable surface bone block are associated with the osteotomy surgical procedure.

Abstract: Systems, methods and apparatus for providing three dimensional, transforming demonstration models that illustrate the way different osteotomy surgical procedures change the geometry of the relevant bones from a pre-surgical state to a post-surgical state.