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Internal fixation element for hip acetabular shell
Internal fixation element for hip acetabular shell
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机译:髋臼髋臼壳内固定元件
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摘要
An acetabular cup assembly for a prosthetic hip joint includes an outer shell for attachment to the acetabulum. The outer shell has an inner surface receiving a bearing insert portion. Complimentary coupling features are provided on the inner surface of the outer shell and the outer surface of the bearing insert for coupling the bearing insert to the outer shell. A plurality of adaptors are provided having an outer surface for engaging an inner surface of the outer shell and having an inner surface for receiving the bearing insert. Each adaptor has at least one radial extending strap or flange for engaging the bone surrounding the acetabulum. The straps or flanges may be of different sizes and shapes and may be at different locations on the adapter. The inner surface of the adaptor includes the same coupling features as the shell so as to be able to receive a bearing insert.
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