Oblong acetabular cup

Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone

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606 81, A61F 234, A61F 504

Patent

active

052903150

ABSTRACT:
An oblong acetabular cup which includes a cavity for receiving a bearing element is provided. The plane of the opening into the cavity is skewed relative to the prosthesis' longitudinal plane so as to achieve adduction correction, anteversion correction, or both adduction and anteversion correction. In certain preferred embodiments, the prosthesis is constructed from two components which can be oriented with respect to one another to achieve different directions and amounts of anteversion correction. In some embodiments, the two components form a cusp in the outside surface of the prosthesis. Surgical instruments and surgical methods for implanting the prostheses are disclosed.

REFERENCES:
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patent: 4960427 (1990-10-01), Noiles et al.
patent: 5100409 (1992-03-01), Coates
patent: 5176710 (1953-11-01), Hahn et al.
F. Pipino and P. M. Calderale, "A Biequatorial Acetabular Cup for Hip Prosthesis," Acta Orthopaedica Belgica, vol. 48, pp. 5-13 (1980).
F. Pipino and P. M. Calderale, "A Biequatorial Hip Prosthesis," Panminerva Medica, vol. 25, pp. 231-239 (1983).

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