Modular glenoid prosthesis and associated method

Abstract

A glenoid implant assembly is provided. The assembly includes a first component for attachment to the glenoid fossa of a scapula. The component defines an assembly face of the component. The assembly also includes a second component removably secured to the first component. The second component includes an assembly face of the second component. The assembly face of the second component is in close approximation to the assembly face of the first component. The second component is attachable to the first component in a direction generally normal to the assembly faces.

1 . A method for performing arthroplasty on a glenoid fossa of a scapula comprising the steps of:
 using a first glenoid component for attachment to the glenoid;   attaching the first glenoid component to the glenoid;   using a second glenoid component for attachment to the first glenoid component; and   attaching the second glenoid component to the first glenoid component in a direction generally normal to the longitudinal axis of the first glenoid component.   
     
     
         2 . A method for performing arthroplasty on a glenoid as in  claim 1 , wherein the using a first glenoid component step comprises the steps of using a first glenoid component having at least one of a protrusion and a fastener for cooperation with the scapula. 
     
     
         3 . A method for performing arthroplasty on a glenoid as in  claim 1 :
 wherein the using the first glenoid component step comprises the step of using the first glenoid component having a tapered connection;   wherein the using the second glenoid component step comprises the step of using the second glenoid component having a tapered connection; and   wherein the attaching step comprises attaching the tapered connections to each other.   
     
     
         4 . A method for performing arthroplasty on a glenoid as in  claim 1 , wherein the using a first glenoid component step comprises the steps of using a first glenoid component having at an augment for filling a void in the scapula. 
     
     
         5 . A method for performing arthroplasty on a glenoid as in  claim 4 , wherein the augmentation defines a wall forming an opening in the augmentation and the method further includes securing the augmentation to the scapula via a fastener that extends partially through the opening. 
     
     
         6 . A method for performing arthroplasty on a glenoid as in  claim 1 , wherein the using a first glenoid component step comprises the steps of using a first glenoid component having a protrusion for cooperation with the glenoid vault of the scapula. 
     
     
         7 . A method for performing arthroplasty on a glenoid fossa of a scapula comprising the steps of:
 using a first glenoid component for attachment to the glenoid;   attaching the first glenoid component to the glenoid;   selecting a second glenoid component from a plurality of glenoid components for attachment to the first glenoid component; and   attaching the second glenoid component to the first glenoid component in a direction generally normal to the longitudinal axis of the first glenoid component.   
     
     
         8 . A method for performing arthroplasty on a glenoid fossa of a scapula according to  claim 7 , wherein the plurality of glenoid components includes at least one glenoid component having an attachment face and an opposing face, the opposing face being generally concave, the plurality of glenoid components including at least one other glenoid component having an attachment face and an opposing face, the opposing face of the at least one other glenoid component comprising a generally spherically convex articulating bearing component. 
     
     
         9 . A method for performing arthroplasty on a glenoid fossa of a scapula according to  claim 1 , wherein attaching the first glenoid component to the glenoid includes securing a feature on the first glenoid component to the glenoid vault.