Abstract: Methods for determining an amount of distal femoral resection, methods for determining the amount of proximal tibial resection and methods for setting a position of a resection of a distal femur or a proximal tibia in a total knee arthroplasty using instruments to obtain intraoperative patient-specific measurements and positioning or resecting the target bone based on intraoperative patient-specific measurements.
Abstract: An instrument for setting a position of a resection of a distal femur or a proximal tibia in a total knee arthroplasty, the instrument comprising: a stable portion, the stable portion configured for orientation in a set position relative to said distal femur or said proximal tibia; a resection guide portion, the resection guide portion configured to guide a resection path for said resection; a resection guide body, the resection guide body associated with the resection guide portion in a fixed orientation; the resection guide body pivotally connected to the stable portion, whereby pivoting adjustment of the resection guide body on the stable portion sets a resection orientation of the resection guide portion; and the resection guide body having a lock for selectively locking the resection guide body to the stable portion at a plurality of selectable resection orientations.
Type:
Grant
Filed:
September 7, 2021
Date of Patent:
March 19, 2024
Assignee:
Steensen Orthopedics Systems, LLC
Inventors:
Robert N. Steensen, Brian R. Harris, Jeff R. Justis
Abstract: Instruments and components for improving the accuracy of resection of the proximal tibia in a kinematic alignment total knee arthroplasty (“TKA”). Instruments include an adjustable double tibial stylus instrument comprising: a first wide convex stylus tip and a second wide convex stylus tip at a second distal end of the second stylus. The wide convex stylus tips may be fixed components of the adjustable double stylus instrument, or the wide convex stylus tips may be detachable.
Type:
Application
Filed:
April 26, 2023
Publication date:
November 23, 2023
Applicants:
Steensen Orthopedic Systems, LLC, MicroPort Orthopedics Holdings Inc.
Inventors:
Robert N. Steensen, Brian R. Harris, JR., Duy Q. Dang
Abstract: An instrument for setting a position of a resection of a distal femur or a proximal tibia in a total knee arthroplasty, the instrument comprising: a stable portion, the stable portion configured for orientation in a set position relative to said distal femur or said proximal tibia; a resection guide portion, the resection guide portion configured to guide a resection path for said resection; a resection guide body, the resection guide body associated with the resection guide portion in a fixed orientation; the resection guide body pivotally connected to the stable portion, whereby pivoting adjustment of the resection guide body on the stable portion sets a resection orientation of the resection guide portion; and the resection guide body having a lock for selectively locking the resection guide body to the stable portion at a plurality of selectable resection orientations.
Type:
Application
Filed:
January 25, 2019
Publication date:
August 1, 2019
Applicants:
Steensen Orthopedic Systems LLC, MicroPort Orthopedics Inc.
Inventors:
Robert N. Steensen, Brian R. Harris, Jeff R. Justis