The PIR Medial Femoral Condyle (PIR-MFC) implants are designed to treat articular cartilage defects (1 – 5 cm2) of the anterior or central medial femoral condyle. The PIR-MFC consists of 11 implants and treats over 95% of expected defect sizes. It is implanted using a simple surgical technique in four (symmetric implant) or eight steps (oval implant).
The PIR Patellofemoral Groove (PIR-PFG) implants are designed to treat articular cartilage defects of the patellofemoral groove. The system includes 10 implants with either a 20mm or 25mm cap diameter, a 1mm or 3mm offset, and a trochlear groove angle of 125°, 135°, or 145° and contains an optional polyethylene patellar component. The system is implanted using a simple 5-step surgical technique.