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Implantable joint prosthesis

  • US 6,702,854 B1
  • Filed: 05/30/2000
  • Issued: 03/09/2004
  • Est. Priority Date: 06/01/1999
  • Status: Expired due to Term
First Claim
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1. A system for replacing a joint, comprising;

  • a stern portion with a proximal end, a midshaft bearing at least one axially directed ridge and a distal non-ridged shaft, wherein the at least one axially directed ridge projects radially from a surface of the stem portion and the distal non-ridged shaft comprises at least 10% of the stem portion, said stem portion being insertable into a medullary canal of a bone shaft to engage a cortical bone surface thereof;

    a head portion dimensionally adapted to articulate with a surgically prepared joint socket; and

    a neck portion with a first end and a second end, said first end being contiguous with the proximal end of the stem portion and protruding from the medullary canal when the stem portion is secured within said medullary canal and said second end being dimensionally adapted for bearing the head portion into an anatomically correct relationship with the surgically prepared joint socket.

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