Method for tibial nail insertion
AssigneeStryker European Holdings I, LLC
InventorsAnnika Homeier, Ilan Howling, Nils Zander, Lothar Kühne, Claudia Graca
Life of this patent
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Abstract
A method for implanting a longitudinal intramedullary nail into the tibia comprises inserting the tibia nail along a plane of symmetry through the tuberositas tibiae. Thereby, the tuberositas tibiae can be used during nail insertion to correctly align the nail and the target arm to the symmetry plane of the bone. This means, that the whole construct, the nail attached to the target arm, has to be inserted in external rotation.
Claims20
A method for implanting a longitudinal intramedullary nail into the tibia, the method comprises:
- providing a longitudinal intramedullary nail having a section with a curvature, which curvature has a predetermined radius;
- identifying a sagittal plane of the tibia;
- aligning the intramedullary nail, such that the radius of the intramedullary nail lies in the sagittal plane,
- externally rotating the intramedullary nail until the intramedullary nail is inclined by an angle between 13° to 37° with respect to the sagittal plane of the tibia;
- and
- inserting the intramedullary nail into a marrow channel of the tibia.
A method for implanting a longitudinal intramedullary nail into the tibia, the method comprises:
- providing a longitudinally extending intramedullary nail having a section with a curvature, which curvature has a predetermined radius of curvature lying along a plane containing the longitudinal axis of the nail;
- identifying a sagittal plane through a tibia;
- aligning the intramedullary nail prior to insertion, such that the plane containing the radius of the intramedullary nail section lies in the sagittal plane;
- externally rotating the intramedullary nail until the plane containing the nail radius is coplanar with a plane through a tuberositas tibiae of the tibia;
- and thereafter,
- inserting the intramedullary nail into a marrow channel of the tibia through an entry point lying on the plane through the tuberositas tibiae.
A method for implanting a longitudinal intramedullary nail into the tibia, the method comprises:
- providing a longitudinally extending intramedullary nail having a section with a curvature lying in a plane, which curvature has a predetermined radius measured from a center lying in the plane;
- identifying a sagittal plane of the tibia;
- aligning the intramedullary nail, such that the plane containing the radius of curvature of the intramedullary nail lies in the sagittal plane;
- externally rotating the intramedullary nail until the plane of the intramedullary nail containing the radius is inclined by an angle between 13° to 37° with respect to the sagittal plane of the tibia;
- and
- inserting the intramedullary nail into a marrow channel of the tibia.
Dependencies are inferred from the claim text.