Proportioned surgically implantable knee prosthesis

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

Reexamination Certificate

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C623S020290, C623S020300

Reexamination Certificate

active

10232608

ABSTRACT:
A knee prosthesis for unicompartmental implantation into a knee joint is implantable without requiring bone resection and includes a body free of any means of fixation to a portion of knee joint, anatomy and having a substantially elliptical shape in plan and a pair of contoured opposed faces including a convex face and a concave face. A peripheral edge extends between the faces and includes a first side, a second side opposite the first side, a first end and a second end opposite the first end. A first dimension D is defined by the first end and the second end. A second dimension F is defined by the first side and the second side. The dimension F is from about 0.25 to about 1.5 of the dimension D.

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Wheeler, J.; “Little Device Could Pack a Big Punch”: Sulzer Medica Journal Feb. 2000; pp. 16-17.
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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