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Evaluating the fit of an orthopaedic implant

  • US 5,989,261 A
  • Filed: 07/29/1997
  • Issued: 11/23/1999
  • Est. Priority Date: 03/13/1997
  • Status: Expired due to Term
First Claim
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1. A provisional instrument component for evaluating the fit of a knee replacement prosthesis on a resected tibial surface, said component comprising a positioning tray having a peripheral profile corresponding to that of a tibial platform of the prosthesis, the tray having an upper surface and an under surface which is substantially flat and free from projections and said tray having a plurality of holes for receiving pins for temporarily attaching the positioning tray in a desired position on said resected tibial surface, wherein a boss is carried on the upper surface of the tray for guiding a temporary plastics meniscal bearing component on said upper surface with freedom of movement in the anterior-posterior direction.

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