---
title: Klassic Knee - Symmetric vs. Asymmetric
image: https://info.tjoinc.com/hubfs/NEW%20DATA%20(4).png
---

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![header-1](https://info.tjoinc.com/hs-fs/hubfs/header-1.png?width=1250&height=273&name=header-1.png "header-1")

![Screenshot 2025-03-06 at 12.44.15 PM](https://info.tjoinc.com/hs-fs/hubfs/Screenshot%202025-03-06%20at%2012.44.15%20PM.png?width=2000&height=334&name=Screenshot%202025-03-06%20at%2012.44.15%20PM.png "Screenshot 2025-03-06 at 12.44.15 PM")

![NEW DATA (4)-1](https://info.tjoinc.com/hs-fs/hubfs/NEW%20DATA%20(4)-1.png?width=500&height=306&name=NEW%20DATA%20(4)-1.png "NEW DATA (4)-1")

### HEAD-TO-HEAD COMPARISON: MODERN SYMMETRIC VS. ANATOMIC ASYMMETRIC 

![Screenshot 2025-03-07 at 11.00.40 AM](https://info.tjoinc.com/hs-fs/hubfs/Screenshot%202025-03-07%20at%2011.00.40%20AM.png?width=493&height=235&name=Screenshot%202025-03-07%20at%2011.00.40%20AM.png "Screenshot 2025-03-07 at 11.00.40 AM")

- Improved patellar tracking (less patellar tilt)
- Similar PROs, similar clinical outcomes
- Improved efficiency without compromise

### IMPROVED PATELLA TRACKING / LESS PATELLA TILT

![Screenshot 2025-03-06 at 1.11.33 PM](https://info.tjoinc.com/hs-fs/hubfs/Screenshot%202025-03-06%20at%201.11.33%20PM.png?width=1720&height=576&name=Screenshot%202025-03-06%20at%201.11.33%20PM.png "Screenshot 2025-03-06 at 1.11.33 PM")

*Patellar tilt comparison: asymmetrical (left) vs. symmetrical (right) femurs *

![Patellar Tilt - Klassic Knee](https://info.tjoinc.com/hs-fs/hubfs/Screenshot%202025-03-06%20at%201-05-56%20PM.png?width=944&height=578&name=Screenshot%202025-03-06%20at%201-05-56%20PM.png "Patellar Tilt - Klassic Knee")

[View the Full Publication](https://info.tjoinc.com/hubfs/Comparisons%20of%20Modern%20Sym%20vs%20Asym%20TKA%20design%20-%20Rainey%202025-1.pdf?hsLang=en)

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