This 2003 narrative review by Malo and Vince systematically examines why the patella becomes unstable after TKA and how to prevent and manage it — covering component malpositioning, prosthetic design, patellar preparation, soft-tissue balance, intraoperative assessment techniques, and the decision framework for surgical versus nonsurgical correction.
When you see a painful, stiff TKA with patellar maltracking, order a CT using the Berger protocol to quantify component rotation before planning any soft-tissue procedure — if malrotation is the culprit, lateral release alone will fail and revision is required.
This 2003 narrative review by Malo and Vince systematically examines why the patella becomes unstable after TKA and how to prevent and manage it — covering component malpositioning, prosthetic design, patellar preparation, soft-tissue balance, intraoperative assessment techniques, and the decision framework for surgical versus nonsurgical correction.
When you see a painful, stiff TKA with patellar maltracking, order a CT using the Berger protocol to quantify component rotation before planning any soft-tissue procedure — if malrotation is the culprit, lateral release alone will fail and revision is required.