Spinal Arthroplasty Devices
PEEK-OPTIMA Wear Performance can Reduce Debris
Studies comparing spinal arthroplasty to fusion outcomes five years after surgery indicate that spinal arthroplasty devices may decrease the incidence of adjacent level degeneration and re-operation compared to fusion. However, histological analysis of current generation spinal arthroplasty devices has shown evidence of both metallic and polymeric wear debris, frequently with inflammatory cells in the surrounding tissues.
PEEK-OPTIMA Wear Performance is strengthened with carbon fibre and tailored for bearing applications against hard surfaces. Unique characteristics make it a preferred material for spinal arthroplasty devices.
- Preliminary dynamic testing indicates that spinal arthroplasty devices made with PEEK-OPTIMA Wear Performance are capable of generating significantly less wear debris than devices with more traditional couplings.
- In addition, in vitro studies comparing macrophage activity to PEEK and UHMWPE particles of different sizes have shown that PEEK particles induced less inflammatory response than UHMWPE.
- Unlike metals and other polymers, PEEK-OPTIMA Wear Performance is inherently radiolucent and provides improved healing site visualization.