FEMORAL COMPONENT AND INSTRUMENTATION
First Claim
1. An instrument system for setting the internal-external rotation of a prosthetic femoral component with respect to a proximal tibia comprising:
- a bone resection instrument having a planar surface for engaging a planar surface of a resected distal femur and a cutting guide for guiding a tool for resecting a posterior surface of the distal femur and forming a cylindrical surface on the posterior condyle intersecting said planar surface, the cylindrical surface defined by an axis extending in a direction generally perpendicular to said planar surface; and
a trial component having a planar surface for engaging the planar surface of the resected distal femur and having posterior condyles having a cylindrical anteriorly facing surface engagable with the resected cylindrical surface on the posterior condyle.
1 Assignment
0 Petitions
Accused Products
Abstract
An instrument system for setting the internal-external rotation of a prosthetic femoral component with respect to a proximal tibia has a bone resection instrument having a planar surface for engaging a planar surface of a resected distal femur. The bone resection instrument system has a cutting guide for guiding a tool for resecting a posterior surface of the distal femur and forming a cylindrical surface on the posterior condyle intersecting the planar surface. The cylindrical surface defined by an axis extending in a direction generally perpendicular to the resected planar surface. The system includes a trial component having a planar surface for engaging the planar surface of the resected distal femur and having posterior condyles having a cylindrical anteriorly facing surface engagable with the resected cylindrical surface on the posterior condyle.
180 Citations
20 Claims
-
1. An instrument system for setting the internal-external rotation of a prosthetic femoral component with respect to a proximal tibia comprising:
-
a bone resection instrument having a planar surface for engaging a planar surface of a resected distal femur and a cutting guide for guiding a tool for resecting a posterior surface of the distal femur and forming a cylindrical surface on the posterior condyle intersecting said planar surface, the cylindrical surface defined by an axis extending in a direction generally perpendicular to said planar surface; and a trial component having a planar surface for engaging the planar surface of the resected distal femur and having posterior condyles having a cylindrical anteriorly facing surface engagable with the resected cylindrical surface on the posterior condyle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 20)
-
-
10. An instrument system for setting the internal-external rotational position of a prosthetic femoral component with respect to a proximal tibia, comprising:
-
a bone cutting guide for placement adjacent a planar resected distal surface of a femur, the cutting guide having a saw blade guide slot capable of guiding a saw blade to form an arcuate surface on at least one posterior condyle of the femur, the arcuate surface centered about an axis parallel to a proximal-distal axis of the femur; and a trial component having a planar surface and an arcuate guide surface for engaging the arcuate posterior femoral condyle surface on the distal femur and the planar surface of the template adjacent a planar distal surface of the femur, the planar surface of the trial component extending perpendicular to a central axis of the cylindrical surface of the trial component. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
-
Specification