orthomap® express knee navigation
TRANSCRIPT
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OrthoMap® Express KneeNavigation
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OrthoMap Express Knee – Points of Interest
● Less invasive: no need for tracker pinsin the shafts of the femur or tibia
● A “simplified” navigation solution:navigate distal femur and proximal tibiacuts; cut-check-only feature included
● Open platform: works with any implantsystem
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Express Knee – The Overall Procedure● Incision – all standard techniques for exposing
the knee joint may be applied
● Prepare femur- Attach fixation plate to distal femur
- Register femur
- Navigate and resect distal femur
- Distal femur cut verification
- Option to align femoral rotation (requiresadditional registration points)
● Prepare tibia- Attach fixation plate to proximal tibia
- Register tibia
- Navigate and resect proximal tibia
- Proximal tibia cut verification
● Proceed with conventional TKA
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Femur Preparation
● Tracker attachment on articularsurface with four 1/8” pins
● Mount femoral tracker to fixationplate
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Femur Registration● Requires six landmark
registration points- Hip in Flexion- Hip Center- Knee Center- Femoral AP Axis- Medial Condyle- Lateral Condyle
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Resect Distal Femur
● Attach Dedicated Mini Jigto the fixation plate. Thecutting plane is trackedusing the blue tracker.
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Resect Distal Femur● Distal femoral cutting
plane is viewed on thevirtual model created bythe software
● Adjustments tovarus/valgus,flexion/extension andresection depth are madein real time
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Distal Femur Cut Verification● Verification of cut via re-
registration of themechanical axis
● Plane probe is pinned inthe center of the femurwith neutral rotation usingtwo 1/8” headless pins
● Range of motion re-findsthe femoral head center
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Tibia Preparation
● Fixation plate pinned to the tibialplateau with four 1/8” pins
● Mount tibial tracker to fixation
plate
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Tibia Registration● Requires six landmark
registration points- Tibia Center- Tibial AP Axis- Medial Compartment- Lateral Compartment- Medial Malleolus- Lateral Malleolus
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Resect Proximal Tibia
● Attach Dedicated Mini Jigto the fixation plate. Thecutting plane is trackedusing the green tracker.
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Resect Proximal Tibia● Proximal tibia cutting
plane is viewed on thevirtual model created bythe software
● Adjustments tovarus/valgus, slope andresection depth are madein real time
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Proximal Tibia Cut Verification● Plane probe is pinned in the
center of the tibia with neutralrotation using two 1/8”headless pins
● Redigitization of malleolicalculates the tibialmechanical axis
● Display of cut plane relativeto the mechanical axis
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References
1. OrthoMap Express Knee Navigation Version 2.0 User Manual
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The information presented in this presentation is intended todemonstrate a Stryker product. Always refer to the packageinsert, product label and/or user instructions before using anyStryker product. Products may not be available in all markets.Product availability is subject to the regulatory or medicalpractices that govern individual markets. Please contact yourStryker representative if you have questions about theavailability of Stryker products in your area.
Stryker Corporation or its divisions or other corporate affiliatedentities own, use or have applied for the following trademarks orservice marks: OrthoMap, Stryker. All other trademarks aretrademarks of their respective owners or holders.
Literature Number: 9100-001-688 Rev. None
Copyright © 2012 Stryker