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Patellar Reconstruction During Total Knee Arthroplasty for Previous Patellectomy
Chun Man Lawrence Lau1, Ka Chun Thomas Leung2, Michelle Hilda Luk2
1Department of Orthopaedics and Traumatology, School of Clinical Medicine, The University of Hong Kong, Hong Kong SAR, China.
Arthroplasty Today
|May 8, 2026
Summary
Patellectomy complicates total knee arthroplasty (TKA), causing instability and pain. This study presents a surgical technique for patellar reconstruction during TKA in patients with prior patellectomy and malalignment.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
Background:
- Patellectomy is an uncommon procedure that presents significant challenges in total knee arthroplasty (TKA).
- It can lead to anteroposterior instability, anterior knee pain, and loss of mechanical advantage.
- These complications are amplified when patellectomy is secondary to lower limb malalignment, patellofemoral pain, and instability.