Normal-Like Axial Rotation with a Modern Universal Knee System

Weight-bearing deep knee bend under fluoroscopic surveillance

"...[patients] experience consistent femoral rollback of the lateral condyle and normal-like axial rotation pattern."

Conclusion:
“Although subjects in this study were implanted with a symmetrical PCS TKA, they did experience femoral rollback of the lateral condyle and a normal-like pattern of axial rotation, although less in magnitude than the normal knee... Interestingly, the magnitude of posterior femoral rollback and axial rotation for subjects in this study was similar in magnitude reported in previous studies pertaining to asymmetrical TKA designs.”