Shoulder arthroplasty systems and configurations for components thereof

Abstract

Shoulder arthroplasty systems and configurations for components thereof are described. For example, implant systems for a total should arthroplasty (TSA), hemi shoulder arthroplasty, and reverse should arthroplasty (RSA) are described. In addition, exemplary configurations for baseplates, glenoid components, glenosphere components, humeral components, humeral head components, humerosocket components, connectors, and adaptors, are described.

What is claimed is: 
     
         1 . A shoulder prosthesis system, comprising:
 a baseplate comprising:
 a body having an oblong configuration and including:
 a lateral side, 
 a medial side, 
 a first end comprising a first bore extending through the body from the lateral side to the medial side; and 
 a second end positioned opposite the first end and comprising a second bore extending through the body from the lateral side to the medial side, the first end and the second end defining the oblong configuration; 
 
 a threaded component; and 
 a shaft having a hydroxyapatite coating positioned between the body and the threaded component; 
   a glenosphere component comprising:
 a medial side including a recess configured to receive at least the lateral side of the baseplate body such that the first end and the second end of the baseplate body is positioned in the recess; and 
 a lateral side; 
   an adaptor comprising:
 an adaptor body having a medial side and a lateral side; 
 an adaptor recess; 
 a tapered trunnion extending proximally from the base of said recess; and 
 a bore element; wherein the adaptor is configured to be received by the recess of the glenosphere and wherein said adaptor recess is configured to receive a portion of, or the entirety of, the body of the baseplate; and wherein said bore extends through body of the adaptor and tapered trunnion and is configured to receive a length of a retaining screw; 
   a humerosocket component comprising:
 a medial side; 
 a lateral side; 
 a projection positioned on the lateral side of the humerosocket component; and 
 an articulating face defined in the medial side of the humerosocket component and configured to receive the lateral side of the glenosphere component; and 
   a humeral component comprising:
 a distal stem configured to be fitted within a prepared proximal end of a humerus of a patient; 
 a transition region including an aperture extending through a portion of the transition region; and 
 a proximal head defining a cavity extending distally into the proximal head, the cavity configured to receive the projection of the humerosocket component. 
   
     
     
         2 . The shoulder prosthesis system of  claim 1 , wherein the first end of the baseplate body and the second end of the baseplate body span a distance that is smaller than an outside diameter of the recess in the medial side of the glenosphere component. 
     
     
         3 . The shoulder prosthesis system of  claim 1 , wherein at least a portion of the recess in the medial side of the glenosphere component is configured to receive bone grafting material. 
     
     
         4 . The shoulder prosthesis system of  claim 1 , wherein the medial side of the baseplate body comprises an osteoinductive surface. 
     
     
         5 . The shoulder prosthesis system of  claim 1 , wherein the medial side of the glenosphere component comprises an osteoinductive surface. 
     
     
         6 . The shoulder prosthesis system of  claim 1 , wherein the baseplate body further comprises a tapered cavity extending from the lateral side into the baseplate body. 
     
     
         7 . The shoulder prosthesis system of  claim 6 , further comprising a hexagonal recess formed in a base of the tapered cavity. 
     
     
         8 . The shoulder prosthesis system of  claim 7 , wherein the hexagonal recess is configured to receive a baseplate installation tool. 
     
     
         9 . The shoulder prosthesis system of  claim 1 , wherein the humerosocket component further comprises an annular portion extending distally to a tapered portion. 
     
     
         10 . The shoulder prosthesis system of  claim 9 , wherein the tapered portion extends to a base of the lateral side of the humerosocket component