Porous Knee System for Arthritis

This trial tests the safety and effectiveness of the Porous Total Knee System, a knee implant designed to aid individuals with severe arthritis from wear and tear, injury, or inflammation. The study aims to demonstrate that the implant reduces pain, improves mobility, and remains durable after surgery. Participants will receive one of two versions of the implant, with or without a hydroxyapatite coating. Ideal candidates need a knee replacement due to arthritis or have received this specific implant in the past year. As a Phase 3 trial, this study represents the final step before FDA approval, offering participants the opportunity to contribute to the availability of a potentially groundbreaking treatment.

The trial information does not specify if you need to stop taking your current medications. It's best to discuss this with the trial team or your doctor.

Research shows that the Porous Total Knee System by Smith and Nephew is generally well-tolerated. The FDA has approved this system for knee replacements, indicating a good safety record. Studies have found that both versions of this system—one with a special bone-like coating called hydroxyapatite and one without—perform well over time. The hydroxyapatite coating has been used in other implants with successful long-term results, often surpassing those without it.

The Porous Total Knee System is unique because it uses a porous design that encourages bone growth and stability. Unlike traditional knee replacements, which often rely on cement for fixation, this system allows the bone to integrate directly with the implant, potentially leading to a more natural feel and longer-lasting results. Researchers are excited about these treatments because they offer two options: one with hydroxyapatite, which further promotes bone bonding, and one without, providing flexibility based on patient needs. These innovations could mean less wear and tear over time and a more tailored approach to knee replacement.

Research shows that the LEGION Porous Total Knee System can reduce pain and improve movement for individuals needing knee replacement. Studies indicate that patients using this porous design, which avoids bone cement, often experience long-lasting results. In this trial, participants will receive either the implant version with a special coating called hydroxyapatite, which aids in bonding with bone, or the version without it. The hydroxyapatite-coated version demonstrated good results over 15 to 22 years, often outperforming traditional cemented implants. Both implant versions aim to enhance knee function and provide durability. These findings suggest that the system can offer significant benefits to those with arthritis-related knee problems.²⁴⁶⁷⁸