User's Guide

1
The OrthoSensor™ Knee Balancer is an intelligent tibial trial that provides intraoperative data to help determine and
achieve optimal soft tissue balance and component position during total knee arthroplasty (TKA).
The Knee Balancer is capable of sensing dynamic loads and center of load* in the medial and lateral compartments of the
operated knee through a full range of motion with the patella reduced.
When utilized in the trialing phase of TKA the Knee Balancer will sense intercompartmental loads, center of load* as a
reference for tibial-femoral contact, tibial tray rotation and exion angle of the leg*. Data is displayed on a 27” monitor on the
OrthoSensor LinkStation™ depicted below.
The OrthoSensor Knee Balancer enables the surgeon to make evidence based decisions regarding soft tissue releases and
component position to achieve true balance and stability through a full range of motion.
INTRODUCTION
Key Features
• Provides dynamic intraoperative loads and
center of load* in the medial and lateral
compartments through full range of motion
with the patella reduced.
• Kinetic Tracking™ feature provides dynamic
kinematic tracking in conjunction with load
data.
• Displays Tibial Tray Rotation and Knee Flexion
Angle*.
• Requires no change to surgical workow.
• Low cost, single use disposable device.
• Enables data capture in still images or video
that may be added to the patient record.
*For Reference Only
Key Clinical Benets
• Addresses the leading causes of early
implant failure in TKA: instability,
malrotation and loosening
• Dynamic intercompartmental load data
and Kinetic Tracking enable evidence
based soft tissue releases to improve
stability.
• Provides intraoperative feedback on
tibial component rotation*, center of
load* and femoral articulation to
facilitate optimal component position.
• Enables reproducible, teachable surgical
technique.
• Captures intraoperative data for inclusion
in patient record and registries.