The Columbus Knee System: 4-Year Results of a New Deep Flexion Design Compared to the NexGen Full Flex Implant

<table>Lateral X-ray of a Columbus knee in maximum flexion: the remaining original posterior condyles do not contact the rim of the polyethylene inlay although there is already full contact of calf and tight. There is no instability or subluxation of the implant.</table>

Arthritis

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Figure 5

Figure 5: The Columbus Knee System: 4-Year Results of a New Deep Flexion Design Compared to the NexGen Full Flex Implant 