Osteonics Corp.

Peter J Abitante

Nicholas N Dong

Apparatus and method for locating holes to be drilled in natural bone, such as a scapula at a site for a prosthetic implant component, such as a glenoid component to be affixed to the scapula for providing a bearing for a humeral head in a shoulder prosthesis, the apparatus and method including seating a guide block against the scapula at the site for the glenoid component, the guide block having an upper end and a lower end spaced in a longitudinal direction from the upper end, drilling a first hole in the scapula along a first transverse direction by guiding a drill through a first drill guide bore adjacent the upper end of the guide block and extending in the first transverse direction through the guide block, the guide block including a second drill guide bore adjacent the lower end of the guide block and extending in a second transverse direction through the guide block, inserting a locator pin into the first hole in the scapula, with the locator pin projecting from the guide block along one of the first and second transverse directions for reception within the first hole along the first transverse direction, and seating the guide block on the scapula to locate the second transverse direction relative to the scapula, and drilling a second hole in the scapula along the second transverse direction by guiding a drill through the second drill guide bore.

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Westfield, NJ, United States of America

Peter J Abitante