Delivered with a single injection
Arthrosamid® is injected into the synovial cavity, where it disperses within the synovial fluid. Its distribution follows the natural fluid flow of the joint, which is directed by knee movement.
Arthrosamid® is cleared from the synovial cavity and combines with the synovial membrane
Normal intimal transport mechanisms, which remove particulate material from the synovial cavity, also act on Arthrosamid®.
Through this process, the gel is transported through the synovial intima and into the synovial subintima.
Improved knee joint function
The physical presence of Arthrosamid® within the synovial tissue increases elasticity towards that of healthy tissue.8 By removing stimuli for the mechanical pathway driving OA progression, this leads to improved joint function and long-lasting pain relief.
Complete integration
Once deposited in the synovial subintima, Arthrosamid® becomes integrated — a process largely complete within 4–6 weeks after injection. The mature, stable local response to the implanted 2.5% iPAAG is characterised by a fine network of collagen fibrils enmeshed with Arthrosamid®, anchoring it as a permanent implant within the subintimal synovium. This stable integration, 2.5% Polyacrylamide Hydrogel Synovial tissue which results in increased tissue elasticity, means that patients can experience long-lasting pain relief from knee OA.