How long should my knee implant last?
Knee replacement surgery can significantly improve the quality of life for those suffering from severe knee pain and dysfunction. A common question among patients considering or having undergone knee replacement is how long their implant will last. While the longevity of knee implants varies based on several factors, advancements in materials like OXINIUM offer promising results for extended implant life. In this blog, we will explore how long knee implants typically last and why OXINIUM implants, known for their 30-year lifespan, stand out compared to other types.
Typical Longevity of Knee Implants
Standard Knee Implants
Traditional knee implants, often made from materials such as cobalt-chromium alloys and polyethylene, typically last around 15 to 20 years. The longevity of these implants depends on factors like patient activity levels, weight, and overall health. Over time, wear and tear on the implant can lead to loosening, wear particles, and potential failure, necessitating revision surgery.
Introducing OXINIUM: A 30-Year Solution
What is OXINIUM?
OXINIUM, or Oxidized Zirconium, is a revolutionary material used in knee implants. Developed by Smith & Nephew, OXINIUM combines the durability of metal with the smooth, wear-resistant surface of ceramic. This unique combination significantly enhances the lifespan of the implant.
Benefits of OXINIUM Knee Implants
Enhanced Durability
OXINIUM implants are incredibly durable, offering superior resistance to wear and tear compared to traditional metal implants. The material undergoes a special oxidation process that creates a hard, ceramic-like surface while maintaining the toughness of the underlying metal.
Longer Lifespan
One of the most significant advantages of OXINIUM knee implants is their potential to last up to 30 years. This extended lifespan means fewer revision surgeries over a patient’s lifetime, reducing the overall risk and inconvenience associated with knee replacements.
Improved Biocompatibility
OXINIUM is biocompatible and less likely to cause allergic reactions compared to traditional metal implants. This makes it an excellent option for patients with metal sensitivities.
Reduced Wear
The smooth, ceramic-like surface of OXINIUM significantly reduces the production of wear particles. This minimizes the risk of osteolysis, a condition where the bone around the implant deteriorates due to wear particles, leading to a longer-lasting and more stable implant.
OXINIUM vs. Other Implant Materials
Metal Alloys
While cobalt-chromium and titanium implants provide strength and durability, they are more prone to wear and tear over time compared to OXINIUM. Traditional metal implants typically last 15 to 20 years, whereas OXINIUM can extend this lifespan significantly.
Polyethylene
Polyethylene is commonly used for the bearing surfaces of knee implants due to its smooth, low-friction properties. However, standard polyethylene can wear out faster than OXINIUM, leading to a shorter implant lifespan. Cross-Linked Polyethylene (XLPE) has improved wear resistance, but OXINIUM still offers superior longevity.
The longevity of knee implants is a crucial consideration for patients undergoing knee replacement surgery. While traditional implants generally last around 15 to 20 years, OXINIUM knee implants offer a remarkable potential lifespan of up to 30 years. This extended durability, combined with improved biocompatibility and reduced wear, makes OXINIUM an outstanding choice for those seeking long-term solutions for knee pain and dysfunction. If you are considering knee replacement surgery, discussing the benefits of OXINIUM implants with your orthopedic surgeon can help ensure a longer-lasting and more successful outcome.