Surgically implantable knee prosthesis having keels

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

Reexamination Certificate

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Reexamination Certificate

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06966928

ABSTRACT:
An implantable knee prosthesis for unicompartmental implantation into a knee joint includes a body having a substantially elliptical shape in plan and a pair of opposed faces. A peripheral edge extends between the faces and has first and second opposed sides and first and second opposed ends. At least one keel member extends from one of the faces. A first dimension D is defined by the first and second ends. A second dimension F is defined by the first and second sides. The dimension F is from about 0.25 to about 1.5 of the dimension D.

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Anne M. Hollister, M.D., et al., The Axes of Rotation of the Knee, Clinical Orthopaedics and Related Research, No. 290, pp. 259-268.

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