MOTION Clinical Trial

Key Inclusion Criteria: 1. Activity exacerbated knee pain isolated to the medial compartment and not global in nature 2. WOMAC pain ≥ 40 3. Failed to find relief in non-surgical treatment modalities Key Exclusion Criteria: 1. Large medial osteophyte(s) or considerable extruded meniscus that may interfere with the placement or function of the device 2. Poor bone quality (e.g., bony erosion, osteopenia, osteoporosis) 3. Ligamentous instability 4. Active or recent knee infection 5. Inflammatory joint disease, including sequelae of viral infections 6. Suspected or documented allergy or hypersensitivity to cobalt, chromium, nickel or other metals 7. History of keloid, hypertrophic or contracture scaring 8. Propensity for restrictive scar formation or adhesions with prior procedures