Patient-specific bone fracture prostheses and methods of making the same
AssigneeHowmedica Osteonics Corp.
InventorsCeline Courtade-Jouanicq, Marine Godelu, Vincent Coulange, Shawn M. Gargac
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Abstract
Provided is a method for manufacturing a prosthesis for a fractured long bone of a patient. The method includes: providing data representative of the fractured long bone of the patient, the fractured long bone comprising a diaphyseal fragment comprising a medullary cavity; based on the data provided, designing the prosthesis specifically to the patient, wherein the prosthesis comprising a stem part configured to be inserted into the medullary cavity for securing the stem part to the diaphyseal fragment.
Claims13
A method for manufacturing a prosthesis for a fractured long bone of a patient, the method comprising the steps of:
- providing data representative of the fractured long bone of the patient, the fractured long bone comprising a diaphyseal fragment comprising a medullary cavity;
- based on the data provided, designing the prosthesis specifically to the patient, wherein the prosthesis comprising a stem part configured to be inserted into the medullary cavity for securing the stem part to the diaphyseal fragment, wherein designing the prosthesis further comprises:
- selecting, specifically to the patient, at least one contact zone of the medullary cavity onto which a respective chosen mechanical stress is planned to be applied by the stem part, when the stem part is inserted into the medullary cavity and designing the stem part so that the stem part may be inserted into the medullary cavity and thus apply the chosen mechanical stress to said at least one contact zone;
- and
- manufacturing the prosthesis including the stem part as designed.
A method of surgery on a specific patient's joint that has a fractured long bone, the method comprising:
- accessing the joint of the specific patient, the fractured long bone having a first articular surface and an auxiliary articular surface on a bone opposite the first articular surface;
- providing a stem part of a prosthesis, the stem part being configured for the specific patient to have a diaphyseal surface configured to apply a chosen stress to bone matter in a medullary canal of the fractured long bone;
- and
- advancing the diaphyseal portion into the medullary canal of the fractured long bone to apply the chosen stress to the bone matter in the medullary canal of the fractured long bone.
Dependencies are inferred from the claim text.