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Patellar malalignment treatment in total knee arthroplasty
Giorgio Gasparini1, Filippo Familiari1, Francesco Ranuccio1
1Department of Orthopaedic and Trauma Surgery, "Magna Graecia" University of Catanzaro, Italy.
Joints
|January 22, 2015
Summary
Proper patellar management is key for total knee arthroplasty (TKA) success. Addressing factors like component design and surgical technique prevents patellofemoral complications and ensures optimal patient outcomes.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
Background:
- The patella significantly impacts total knee arthroplasty (TKA) outcomes.
- Patellofemoral joint complications can arise from patient-specific factors, surgical techniques, or implant designs.
Purpose of the Study:
- To identify key factors influencing patellar tracking in TKA.
- To outline strategies for preventing patellar maltracking and improving TKA success.
Main Methods:
- Review of factors affecting patellar tracking, including preoperative conditions, surgical approaches, and component characteristics.
- Analysis of critical elements for preventing patellar maltracking during TKA.
Main Results:
- Patellar tracking is influenced by numerous variables: preoperative valgus, patellofemoral dysplasia, femoral component design, surgical approach, Q angle, limb alignment, lateral retinaculum tightness, patellar component positioning, patella height and thickness, and component sizing/rotation.
- Preventing maltracking requires anatomical femoral components, meticulous surgery, dynamic intraoperative assessment, and potential lateral release.
Conclusions:
- Optimizing patellar management, including component selection and surgical technique, is crucial for successful TKA.
- Careful attention to biomechanical factors and intraoperative assessment can mitigate patellofemoral complications.
