Patent ID: 8992615
Filing Date: 2015-03-31
Classification: A61B,A61F,A61L

Abstract:
1. A method of preparing a bone for direct skeletal attachment of a prosthetic joint or external limb prosthesis, comprising: forming a cavity in the medullary canal of the bone; cutting one or more slots through the wall of the bone extending radially from the cavity through an entire thickness of the bone wall; providing an implantable shaft as part of the prosthetic joint or external limb, the shaft comprising a central body configured to fit within the cavity in the medullary canal, and a plurality of side elements extending radially outwardly from the central body, the side elements configured to fit with a portion of one or more of the slots cut through the bone wall; and fitting the implantable shaft in the bone, with the central body fitted within the cavity in the medullary canal, and with the plurality of side element fitted within a corresponding one or more of the slots cut entirely through the wall of the bone, with at least one open space remaining between the side element through which ossification occurs in the bone wall.