Rotational alignment femoral sizing guide

A sizing, femoral technology used in the field of sizing and rotational alignment devices to address issues such as lack of tool adjustment, inability to obtain accurate measurements, and increased surgical time
CN101102724AActive Publication Date: 2008-01-09SMITH & NEPHEW INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SMITH & NEPHEW INC
Publication Date
2008-01-09

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Abstract

Embodiments of the present invention allow unlimited rotational alignment between two boundaries for alignment with anatomic landmarks while still referencing both posterior condyles for A / P sizing of the distal femur. In particular embodiments, the system provides at least one movable paddle that provides a reference point from the condyles so that the measuring assembly can be aligned to be parallel with the epicondylar axis. Once the measuring assembly is properly angled, the A / P length of the bone can then be measured from a proper reference point.
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Description

[0001] This application submits on December 21, 2004 the U.S. provisional patent application No.60 / 638153 titled "Rotational Alignment Femoral Sizing Guide (rotational alignment femoral size measurement guide)" as priority, hereby The entire contents of this US provisional patent application are incorporated by reference. technical field

[0002] The present invention relates to a sizing and rotational alignment device for determining anterior-posterior dimensions of the distal femur in order to determine proper implant size, and to methods of using such a device. Background technique

[0003] In total knee replacement surgery, or arthroplasty, the knee joint is replaced with an artificial implant. The implant typically includes a tibial component, a femoral component, and a movable bearing insert (patella component).

[0004] The inner surface of most femoral components has an intersecting plane that abuts the surgically prepared distal femoral surface. Its outer surface ...

Claims

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