Modular humeral head resurfacing system

摘要

A two piece humeral component for use in joint arthroplasty which is adapted to be implanted into a joint and engaged by a socket component of the joint. The joint component includes a body having a first articulating surface and a second medial surface opposite the first articulating surface. The first articulating surface is adapted to be engaged by the socket and the second medial surface is adapted to be secured to mounting portion. The mounting portion has a first surface and a second medial surface. The first surface is adapted to be fixably engaged to the second mounting portion of the humeral component. The second medial surface is adapted to be secured to the humerus. A peg which has a first end adapted to engage a cavity found in the humerus is disposed on the mounting portion's second medial surface.

主权项

1. A modular joint component for use in a joint arthroplasty, said modular joint component adapted to be implanted into a joint having a head and a neck to engage an articulating surface of the joint, said modular joint component comprising:
a head member having a first articulating surface and a second fixation surface opposite said first articulating surface, said first articulating surface operable to engage the articulating surface of the joint and said second fixation surface being adapted to be secured to a fixation component; and said fixation component having a first surface adapted to be secured to said second fixation surface of said head member and a spherical second surface which is generally opposite the first surface, said spherical second surface having an integrally formed fixation member adapted to be secured within only at least one of the head and the head and neck of the joint, said fixation component defining an annularly disposed coupling flange.