Managing Instability Without Constraint

1/2/02


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Table of Contents

Managing Instability Without Constraint

Paucity of Literature on Tibiofemoral Instability

Three Types of Instability

Unlinked Implants

Varus-Valgus Stability

AP Instability (Flexion Space Instability)

AP Instability Clinical Manifestations

AP Instability Posterior Sag of Tibia

AP Instability Revision Options: AP Instability

AP Instability Surgical Results: AORI

Thicker Insert (3/6 Successful)

AP Instability PS Revision (5/7 Successful)

AP Instability CCK Revision (50% successful)

AP Instability Conclusion: AP Instability

Varus-Valgus Instability (Extension Space Instability)

Varus-Valgus Instability Management Options

Varus-Valgus Instability Medial Instability (AORI)

Varus-Valgus Instability VVC Revision (1/5 Successful)

Varus-Valgus Instability Lateral Instability

Varus-Valgus Instability CCK Revision (1/5 successful)

Varus-Valgus Instability Lateral Ligament Advance: Unsuccessful

Varus-Valgus Instability Conclusions:Varus-Valgus Instability

For Varus-Valgus Instability

PPT Slide

Global Instability:Implant Migration

Global Instability: Poly Wear

Global Instability Clinical Presentation

Global Instability Management Options

Global Instability Management Options

Global Instability Thicker Insert and Extensor Reconstruction (0/2 successful)

Global Instability PS Revision: Intact Collateral Ligaments (4/4 successful)

PS Implant: Collateral Intact

PS Revision: Collaterals Intact (100% Success)

CCK Revision: Extensor Disruption (2/4 Successful)

Global Instability Conclusions: Global Instability

Author: Gerard A. Engh

Email: rwolf@aori.org

Home Page: index.htm