Overview

This clinical study is a Post-Market Clinical Follow-Up (PMCF) measure and is aiming to compare the in-vivo wear behaviour of the Columbus® total knee prosthesis between the standard Cobalt Chromium (CoCr) and the multilayer coated so called "Advanced Surface" (AS) of the same implant. The clinical investigation is designed as a International, prospective, longterm non-interventional study in order to gain clinical data of many patients within the routine clinical application of the investigational device.

Eligibility

Inclusion Criteria:

• Indication for a primary bicondylar total knee endoprosthesis with the Columbus® DD knee prosthesis
• Written signed informed consent of patient
• Willingness and mental ability to participate at the long-term follow-up examinations

Exclusion Criteria:

• Pregnancy
• Patient age <45 and >75years
• Acute inflammatory arthritis
• Coagulation disorders (e.g. Haemophilia)