Surgical implant process for a prosthetic knee

Details Surgical implant process for a prosthetic knee Surgical implant process for a prosthetic knee

1985-01-22

1987-03-17

Apley, Richard J.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

A61F 238

Patent

active

046504907

ABSTRACT:
A method of surgically implanting a human knee prosthesis is provided where (i) the postoperative ratio of the adjusted patellar tendon length to the prosthetic patellar height (APL/PH') is from about 1.2 to about 0.9; and (ii) the tibial component of the knee prosthesis is implanted so that the postoperative anterior/posterior center line of the tibial component is located posterior with respect to the preoperative anterior/posterior center line of the tibial plateau by an amount equal to or greater than about 5% of the anterior/posterior distance of the tibial plateau. An implanted prosthetic human knee joint is also provided having either or both the normalized APL/PH' ratio or the 5% posterior placement.

REFERENCES:
patent: 4209861 (1980-07-01), Walker et al.
patent: 4298992 (1981-11-01), Burstein
patent: 4470158 (1984-09-01), Pappas et al.

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