US 12,471,802 B2
Method of using an adjustable tibial sizer
David Wolfson, West Yorkshire (GB)
Assigned to DEPUY IRELAND UNLIMITED COMPANY LOUGHBEG INDUSTRIAL ESTATE, County Cork (IE)
Filed by DEPUY IRELAND UNLIMITED COMPANY, County Cork (IE)
Filed on Jun. 27, 2023, as Appl. No. 18/342,196.
Application 18/342,196 is a division of application No. 17/123,784, filed on Dec. 16, 2020, granted, now 11,723,554.
Prior Publication US 2023/0346259 A1, Nov. 2, 2023
Int. Cl. A61B 5/107 (2006.01); A61B 5/00 (2006.01); A61B 17/15 (2006.01)
CPC A61B 5/1072 (2013.01) [A61B 5/4585 (2013.01); A61B 5/6878 (2013.01); A61B 17/157 (2013.01)] 6 Claims
OG exemplary drawing
 
5. A method of using an adjustable tibial sizer to aid in selecting an appropriately sized tibial base plate, the method comprising steps of:
using an adjustable tibial sizer that comprises a two-part body which comprises a first body portion, a second body portion, and a connection element extending therebetween, wherein each of the first and second body portions includes a ramp surface configured for simultaneous movement of the first body portion relative to the second body portion in an anterior-posterior direction and a medial-lateral direction;
placing the adjustable tibial sizer on a cut surface of a resected tibia so that a most-medially located surface of the first body portion is against a surface created by a sagittal cut, and a most anteriorly placed point on the first body portion corresponds with a most-anteriorly placed point on the tibia;
moving the second body portion relative to the first body portion, simultaneously in the anterior-posterior direction and the medial-lateral direction until a most posteriorly placed point on the second body portion corresponds with a most posteriorly placed point on the tibia; and
measuring a ratio of an anterior-posterior dimension of the adjustable tibial sizer to a medial-lateral dimension of the adjustable tibial sizer.