Abstract: Instruments and a method are provided for reducing the gap between an implant head and the underlying resected bone surface to produce a more anatomic joint reconstruction. This is accomplished by providing a reamer for counter boring the resected surface to receive the collar so that a portion of the collar is recessed into the resected surface. The present invention permits the flexibility and stability of a collared two-piece implant while maintaining the close fit of a unitary implant.
Type:
Grant
Filed:
January 29, 1999
Date of Patent:
September 19, 2000
Assignee:
Bristol-Myers Squibb Company
Inventors:
Randall N. Allard, David B. Willard, Evan L. Flatow