Patello-femoral prosthesis KineMatch®

Designed specifically for the small but challenging group of patients with isolated, end-stage patello-femoral disease, the KineMatch PFR (Patello-Femoral Replacement) offers a uniquely effective and conservative resurfacing solution. Because the device is precisely pre-fitted to the patient’s anatomy using CT (Computed Tomography) data, no resection of femoral bone is required. This also ensures proper implant alignment and preserves bone stock for the future. The KineMatch® patella, a standard all-polyethylene button, is used in conjunction with the femoral component. And because the goal is not only to reduce pain but also to improve function, the KineMatch PFR is designed to restore knee kinematics by rebuilding the patellar groove for improved patellar tracking and by restoring the A-P position of the patella for proper quadriceps function. The device is implanted in a simple surgical procedure with minimal joint disruption. A drill template matching the patient-specific femoral implant in both femoral fit and perimeter shape is provided for each case. The drill template margin is marked and the cartilage is removed from the bone in the area under the femoral component. Three peg holes are drilled in the anterior femur using the template. The CoCr femoral and UHMWPe patella implants are fixed via their pegs using bone cement. Femoral components thickness is kept to a minimum in order to replicate normal cartilage thickness and provide for normal joint kinematics.