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US 7,678,150 B2Granted
Total shoulder prosthesis of an inverted type
AssigneeTornier SAS
InventorsAlain Tornier, Gilles Walch, Pascal Boileau
Life of this patent
Estimating the term…
Abstract
A total shoulder prosthesis includes a glenoidal component a substantially hemispherical convex articular surface and of which a center of curvature is adapted, when the prosthesis is implanted, to be located in the glenoid cavity or in the immediate vicinity thereof, and a humeral component defining a concave articular surface adapted to cooperate with the convex articular surface of the glenoidal component. The concave humeral articular surface is defined by a metallic part of the humeral component to thereby reduce a space requirement of the prosthesis.
Claims27
A total shoulder prosthesis comprising:
- a glenoid component including a metal convex articular surface, the glenoid component adapted for implantation proximate a glenoid cavity;
- a humeral component comprising a stem portion and a metaphyseal portion, the metaphyseal portion comprising a recess surrounded by a peripheral edge;
- a first insert comprising a first metal concave articular surface adapted to cooperate with the convex articular surface of the glenoid component, at least a portion of the first metal concave articular surface located within the recess when engaged with the metaphyseal portion, the metal concave articular surface on the first insert comprising a first configuration with respect to the metaphyseal portion;
- a second insert comprising a second metal concave articular surface adapted to cooperate with the convex articular surface of the glenoid component, at least a portion of the second metal concave articular surface located within the recess when engaged with the metaphyseal portion, the metal concave articular surface on the second insert comprising a second configuration with respect to the metaphyseal portion, wherein the first configuration is different from the second configuration;
- and
- a first feature on a peripheral edge of at least one of the inserts and a second feature provided on a top surface of the peripheral edge of the metaphyseal portion, the first and second features cooperating to immobilize the inserts from rotating relative to the metaphyseal portion.
3 more elements
A method of implanting a total shoulder prosthesis comprising the steps of:
- implanting a glenoid component with a metal convex articular surface proximate a glenoid cavity;
- providing a humeral component comprising stem portion and a metaphyseal portion, the metaphyseal portion comprising a recess surrounded by a peripheral edge;
- providing a first insert comprising a first metal concave articular surface adapted to cooperate with the convex articular surface of the glenoid component;
- engaging the first insert with the metaphyseal portion so that at least a portion of the first metal concave surface is located in the recess and such that a feature on a peripheral edge of the first insert cooperates with a corresponding feature on a top surface of a peripheral edge of the metaphyseal portion to immobilize the first insert from rotating relative to the metaphyseal portion and wherein the first metal concave surface on the first insert comprises a first configuration with respect to the metaphyseal portion;
- engaging a first metal concave articular surface on the first insert with the convex articular surface of the glenoid component;
- substituting a second metal insert for the first metal insert on the humeral component;
- engaging a second metal concave articular surface on the second insert with the convex articular surface of the glenoid component, the metal concave articular surface on the second insert comprising a second configuration with respect to the metaphyseal portion;
- determining which of the first and second configurations most closely matches a patient's morphology;
- and
- implanting the stem portion so that one of the inserts is engaged with the metaphyseal component and the glenoid component.
7 more elements
A total shoulder prosthesis comprising:
- a glenoid component including a metal convex articular surface, the glenoid component adapted for implantation proximate a glenoid cavity;
- a monolithic humeral component comprising a stem portion and a metaphyseal portion, the metaphyseal portion comprising a recess surrounded by a peripheral edge;
- a first insert comprising a first metal concave articular surface adapted to cooperate with the convex articular surface of the glenoid component, at least a portion of the first metal concave articular surface located within the recess when engaged with the metaphyseal portion, the first metal concave articular surface on the first insert comprising a first configuration with respect to the metaphyseal portion;
- a second insert comprising a second metal concave articular surface adapted to cooperate with the convex articular surface of the glenoid component, the second metal concave articular surface comprising a second configuration, wherein the first configuration is different from the second configuration;
- and
- a first feature on a peripheral edge of at least one of the inserts and a second feature provided on a top surface of the peripheral edge of the metaphyseal portion, the first and second features cooperating to immobilize the inserts from rotating relative to the metaphyseal portion.
3 more elements
A method of implanting a total shoulder prosthesis comprising the steps of:
- implanting a glenoid component with a metal convex articular surface proximate a glenoid cavity;
- providing a monolithic humeral component comprising a stem portion and a metaphyseal portion, the metaphyseal portion comprising a recess surrounded by a peripheral edge;
- providing a first insert comprising a first metal concave articular surface adapted to cooperate with the convex articular surface of the glenoid component;
- engaging the first insert with the metaphyseal portion so that at least a portion of a first metal concave articular surface is located in the recess such that a feature on a peripheral edge of the first insert cooperates with a corresponding feature on a top surface of a peripheral edge of the metaphyseal portion to immobilize the first insert from rotating relative to the metaphyseal portion, the first metal concave articular surface comprising a first configuration with respect to the metaphyseal portion;
- engaging the first metal concave articular surface of the first insert with the convex articular surface of the glenoid component;
- substituting a second insert for the first insert on the humeral component;
- engaging a second metal concave articular surface on the second insert with the convex articular surface of the glenoid component, the second metal concave articular surface of the second insert comprising a second configuration with respect to the metaphyseal portion;
- determining which of the first and second configurations most closely matches a patient's morphology;
- and
- implanting the stem portion so that one of the inserts is engaged with the metaphyseal component and the glenoid component.
7 more elements
A total shoulder prosthesis comprising:
- a glenoid component including a metal convex articular surface, the glenoid component adapted for implantation proximate a glenoid cavity;
- a monolithic humeral component comprising a stem portion and a metaphyseal portion, the metaphyseal portion comprising a recess surrounded by a peripheral edge;
- a first insert comprising a first metal concave articular surface adapted to cooperate with the convex articular surface of the glenoid component, at least a portion of the first metal concave articular surface located within the recess when engaged with the metaphyseal portion;
- a second insert comprising a second metal concave articular surface adapted to cooperate with the convex articular surface of the glenoid component, at least a portion of the second metal concave articular surface located within the recess when engaged with the metaphyseal portion, the second metal concave articular surface comprising a second configuration with respect to the metaphyseal portion, wherein the first configuration is different from the second configuration;
- and
- a first feature on a top peripheral edge facing the glenoid component of at least one of the inserts and a second feature provided on a top surface of the peripheral edge of the metaphyseal portion, the first and second features cooperating to immobilize the inserts from rotating relative to the metaphyseal portion.
3 more elements
Dependencies are inferred from the claim text.