Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone
Patent
1991-03-06
1993-01-05
Green, Randall L.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Bone
623 18, A61F 234
Patent
active
051767112
ABSTRACT:
An implantable acetabular hip prosthesis includes a primary shell having an outer surface adapted to be received within a surgically prepared acetabulum, and an inner cavity for receiving a bearing insert which, in turn, receives a femoral head portion of a femoral component of a total hip prosthesis. The acetabular component of the prosthesis further includes an augmentation piece which is attachable to the primary shell and which fills a defect, such as a rim or cavitary defect, adjacent the natural acetabulum. The augmentation piece may be fixedly retained in a selected one of a plurality of angular orientations, relative to the primary shell. A plurality of augmentation pieces of varying sizes and shapes may be provided to allow the orthopedic surgeon to select an appropriate augmentation piece to match the defect.
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Author: Syntex Laboratories; Title: Bulk Femoral Head Allografts Exhibit High Rate of Failure; Jul./Aug. 1991; pp. 1 & 5.
Author: Mulroy et al.; Title: Failure to Acetabular Autogenous Grafts in Total Hip Arthroplasty; Dec. 1990; pp. 1536-1540.
Green Randall L.
Willse D.
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